Valence Electrons and the Periodic Table

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Where do electrons live in atoms? They live in energy levels or shells, which are varying distances from the nucleus, and can hold varying numbers of electrons. The most important electrons in an atom are the valence electrons, which are in the outermost energy level or shell. We'll look at how to determine the number of valence electrons in an atom, based on which column it is in on the periodic table.

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30 июн 2024

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Комментарии : 1,4 тыс.

@greenlizardballs 10 лет назад

Chemistry is such a colorful subject and its too bad that its typically taught in such a technical manner. This guy truly understands and appreciates the magic behind chemistry and it shows in the way he teaches. All science should be taught in this way. Feynman would be proud. Nothing but respect.

@hypernova8036 6 лет назад

I respectfully disagree with you but probably because I had an awesome chem teacher I think he goes way to slow and I watched this video expecting a somewhat high school level description with orbitals and things that have a level of complexity to them like metallic bonds and electron clouds but I got the stuff that I learned in seventh grade which left me very disappointed.I do agree that chemistry is a very colorful subject and love it just thought he could be much faster and not so basic.

@lewissison6557 6 лет назад

Its not that its basic, its that he is actually teaching instead of just rushing and not thinking about the student's thought on it. This is better than reading an article she found online

@Xbendoesbricks 5 лет назад

It’s good

@Xbendoesbricks 5 лет назад

greenlizard balls

@warriorscode3619 5 лет назад

Wrong! The influence of Alcohol is Colorful. Quantum mechanics should be taught with the aim to oppress and subjugate the simpleton. Right? Or is alcohol very colorful,😵. Yay go lithium crystals!

@tdewitt451 11 лет назад

two separate video cameras: one pointing at me, and one pointing down from above me. then i edit and combine the video using final cut pro.

@andescosmico3016 6 лет назад

I am an old teacher and I just learned from you how to improve my classes. Thanks.

@sandicueva6800 4 года назад

us students appreciate when teachers are willing to still want to improve their skill. TY !

@appz8757 Год назад

Students will learn and enjoy your classes alot more when you make them fun and also appreciate the fact that you do that.

@bryannae9015 2 года назад

This man made me pass my final exam with a 91 and I was failing chemistry! WE NEED MORE TEACHERS LIKE HIM

@kieradevlin7327 Год назад

I have over 40 absences in chem and my final is in two days, your giving me hope I don’t want to re do a class

@zombieboi787 9 месяцев назад

@@kieradevlin7327why so absent?

@chezzburger886 3 месяца назад

@@kieradevlin7327 Did you pass?

@YesImStephanie 8 лет назад

I would do anything to make you my actual chem teacher at school.

@moonlightbeam 8 лет назад

me too,my Chemistry teacher sucks :(

@lynnsiecooley1900 8 лет назад

+Stephanie - me too, he's a great teacher... And a good looking one too, lol, so in any case, he's much easier to listen too ... and although he moves at the same speed as my teacher does it would seem my teacher moves way too fast just because he teaches everything in its most dense forms and so on... I mean, this Tyler Dewitt guy, he's just great because its not like he slows anything down but he definitely simplifies some things that don't need to be taught in such a complex sounding matter, thats just trying to sound smart... I mean, Idk, I believe a good scholastic journal doesn't make it's readers feel stupid, and a good professor is the same way... don't try to impress us, try to break it down and simplify it to a sense that we may quickly take grasp of and begin to understand as students, and in the long run when we someday look at complex problems/situations/tests, and have the ability to think them through as though they are simple, clean cut, organized, ideas like so ^^^, We'll look back and thank you for being such a good teaher/professor.

@DarkMother2332 8 лет назад

+Stephanie Tyler DeWitt is THE REASON why I am passing chemistry in community college, where contact hours are few and self-study is essential. Thank you, thank you, thank you!

@Firesofrevival 7 лет назад

SAME.

@greenfootprinttv1532 6 лет назад

Stephanie agree

@tdewitt451 11 лет назад

Great question. Since Helium has a full shell with only 2 electrons, put the electrons next to each other on top of the symbol, like this: Hë.

@mduduzimduduzi319 10 месяцев назад

I so wish to watch video for 1st years student chemistry at university 🙏🙏🙏

@absolutelyarukaa 9 месяцев назад

oh lmao, makes sense.

@just_adeena_7 4 месяца назад

Is the Helium valency is zero? @tdewitt451

@imawsome6 8 лет назад

This video moves so slow. Slow enough for me to understand!!!! People who catch on faster, may find themselves skipping forward a little bit, but it's nice to be able to follow along at a nice slow pace! 10/10!

@MustafaKhan-pv3qs 6 лет назад

Paul Valdez yup!😎

@Celestials1aurora 5 лет назад

Paul Valdez ya

@maheshsantlani5915 3 года назад

i just don't skip but increase its speed as i may not leave an imp. part

@smashwagon777 3 года назад

They had us in the first half not gonna lie

@rexxoseur 8 лет назад

Are people here like me? I have a test tomorrow.

@silverstorm1000 8 лет назад

My exam is in a month but I like to be prepared :P

@silverstorm1000 8 лет назад

***** Lol guys my exams are next week now :O So far my marks have been all above 90% for the most part so I am happy :D

@josephross6843 8 лет назад

Lol i have a final exam tomorrow

@Bunny-gd3lt 8 лет назад

lmao yup

@crystalbrooks2684 8 лет назад

+Yoyeph Ross same

@disciplechoi2685 Месяц назад

Watched a video from 5 years ago, 8 years ago, to 11 years ago. You're freakin incredible man. 11 years later and your method of teaching is meticulously concise.

@TheMadridTv 8 лет назад

I swear you are the best chemistry teacher in the US!

@gordonbreault8902 7 лет назад

^^^

@78jojogirl 7 лет назад

KWT papa jaber :D

@TheMadridTv 7 лет назад

Jimin is Bae :) Where u from

@78jojogirl 7 лет назад

KWT Am from kuwait :)

@jadatoav 7 лет назад

KWT .. Agreed. That was nicely done. I could most likely keep up in this guy's classroom.

@ImSomeRandom Год назад

It's amazing how Tyler teaches chemistry. The amount of effort and time he puts into these videos make chemistry my favorite and my most exciting class. You've made my and others year.

@LoveNaisa Год назад

I love him and the organic chemistry tutor

@mattwolf7777 7 лет назад

I love way he talks and teaches everyhting. Keeps me interested in a boring topic

@sandicueva6800 4 года назад

and makes a boring topic interesting!

@r4dn943 4 года назад

me too

@serotonin9218 3 года назад

Chemistry is NOT boring!! It is just the way people and teachers teach it. They make it seem boring or maybe you just have a philistinal mindset.

@W-I463 3 года назад

@@serotonin9218 why are you getting so defensive?

@classiseverything2me 8 лет назад

You are very very good. You must write a TEXTBOOK....ASAP!!!

@reyesfamily5588 9 лет назад

to be honest everytime my teacher teaches im like lost (sometimes) but then i come here and im like OHHH. lol i wish you were my teacher. Keep doing what you do it's very helpful and much appreciated. Im watching your videos to study for a test

@MollyRari 3 года назад

i luv you

@RedBullxMD 3 года назад

I'm a non-traditional pre-med student and this dude helped me through my accelerated Gen.chem class! (Entering medical school this coming fall!)

@anavh8067 5 месяцев назад

congrats!!

@janethuot2359 4 года назад

The best instructor in the whole world! If I was an atom I’d bond with you. 😂

@aymansalman2543 4 года назад

Janet Huot your are atoms in fact

@thatgirlasf12k88 2 года назад

😭😭

@yourplaylist4538 2 года назад

Smooth

@AC-mp7cx 2 года назад

uhhhh

@alishaaaax Год назад

Ayooo

@tdewitt451 11 лет назад

Yes, it's just that I call it "unit conversion." So start by watching my video called "Converting Units with Conversion Factors."

@toddlavigne6441 10 лет назад

this guy is an amazing teacher I wish all teachers were as good

@jamaicansistarobinson7587 6 лет назад

Todd Lavigne Agree. He if gifted by Jehovah-God!

@JB-vl9vh 5 лет назад

Thank you! I must say, I got a little emotional watching this not only because I completely understood and retained all of the information, but also because I have been watching chemistry videos all week that have done nothing but overwhelm and frustrate me. Your teaching style is amazing and I truly thank you for taking the time to make it! I cannot wait to watch your other videos 😊

@syrupgoose8131 3 года назад

He sounds like he's blowing his own mind while explaining everything

@matarrcamara4756 2 года назад

Here is the right channel for all visual learners. most teachers confuse students by explaining these technics properly. THANK YOU, SIR!

@larapeterson1833 4 года назад

Damn... I took chemistry classes like 3 years ago and now my mom is back in school (since she don't really speak english she doesn't understand at all) and this video really help me remember everything and with that I was able to explain to my mom what she didn't understand... thanks so much!!! ❤️

@yellomello6952 2 года назад

Kind of late but such a sweet story! love your pfp btw.

@farfymcdoogle3461 5 лет назад

My Chemistry teacher was all over the place confusing us for over an hour and you made it click for me so fast! He sux at teaching!

@Trident2031 5 лет назад

Tyler, you explain Chemistry in the best way I've seen so far. You really help me get a grasp on the subject that I only partially understand when learning from my teacher. Thank you and keep doing what you're doing.

@tdewitt451 11 лет назад

Two dots: Hë

@MollyRari 3 года назад

Hë

@cbigskies5310 10 лет назад

Tyler, I want to thank you for your dedication to making science fun and understandable by telling stories that make the concepts understandable and interesting. I am a non-trad student in my early 40s and was that typical girl that was bad at math and science when I was younger. If I'd had teachers like you I know I could've gotten it then, because I do now because of your fantastic and fun videos. Again, thank you! Cheri

@katerawson4345 5 лет назад

You have the best chem instruction videos online. I read and annotate my textbook then I come here and watch a video on the subject. It helps me feel well rounded. Thank you Tyler!

@sha3599 2 месяца назад

I can tell you that I fell in love with chemistry when I watched your videos. Its not my field of study, but I like to learn more in my spare time. I wish there were more teachers like you when I had chemistry classes long time ago.

@dicktracey2331 10 лет назад

Wow dude your a genius I saw your Ted Talk and now i love watching your videos!! Keep it up bro your helping people everywhere with these vids!

@christiangarrett7688 8 лет назад

Dude thank you for being so organized! I think thats the most crucial part about learning math and science.

@geetajoshi5578 4 года назад

True dude

@josemunoz8452 5 лет назад

This was one of the most beautiful videos I've seen today that helped me with my work. You are truly amazing Mr. Tyler. You earn my respect. Your teaching was like harmony to my brain. Thank you for your teaching.

@samanthaklassen6083 3 года назад

Hello! I'm a chem/math noob. Tyler, you really hold the attention of viewers in your videos, you do an excellent job of explaining (for me at least) and you are helping me slide through these classes with a little more ease/grace. Thank you. From Samantha in Canada, BC!

@lovestargirl1 6 лет назад

You know it's about to get real when he says "Check this out." 😂 I get so excited

@untameddiary226 3 года назад

Love Star omg at the time i read this he said that LMAO🥲

@Kaylynnlove 9 лет назад

"Already living in the nucleus." "one guy on the left." You're like the Bob Ross of chemistry.

@Matt-sc6gg 3 года назад

Or the Richard Feynman

@dawnhirsh6263 3 года назад

Hello, Tyler. I have to say, I am an older learner going back to school and your explanations are probably the best I've heard, and you are engaging and obviously are passionate about what you do. Thanks.

@potawatomi100 7 лет назад

This was a great video. You explained yourself crystal clear, patiently, and really well articulated. You did a great job.

@livelifeandmakeup 10 лет назад

This 15 min video has taught me waaay more than my teachers 1 hour lesson lecture

@EpicfinchAnimations Год назад

hi how are you doing 2023

@lelimideksa8772 9 лет назад

Teaching Chemistry Like A Boss

@caoscosmos 9 лет назад

Dude, I've seen a lot of tutorials, videos about chemistry, phisics, lectures... And I must say that what you're doing is simply awesome and going directly to my top 10 of science channels! The metpahors, the pase and rythym, and how you articulate are perfect to really grasp the concept. It really shows that you reallly love to teach! Keep it up Tyler, ver nice job :D

@riak401 4 года назад

You are amazing!! You are so much better than any professor I’ve ever had. You explain everything so clearly and slowly I am SO grateful for you 💛💛💛💛

@jkg5665 3 года назад

Damn, this guy is good. The dislikes must be from all the chemistry teachers who have all their students ran away from them. There are teachers who know the knowledge, and there are a few "CAN TEACH"!!! Makes me wonder what the actual teaching courses teachers have to take to become a teacher.

@78jojogirl 7 лет назад

am a new science teacher and your videos helped me a lot with my students thanks :)

@Hobyosultana 7 лет назад

Jimin!

@amanisyr3856 7 лет назад

Jimin is Bae Hhhh armys every where. Jiminnn 😍😍👨‍👨‍👧

@mikefreso6177 7 лет назад

I wish my science teacher liked kpop

@amanisyr3856 7 лет назад

mike freso Just imagining this made me feel happy hhhhh

@anji1691 7 лет назад

mike freso yahhh... I wish my science teacher liked Kpop to...

@AndytheChav 6 лет назад

This video is absolutely AMAZING. I appreciate that you've more than likely simplified thing quite a bit but you've totally demystified the basics for me. For the life of me, I just couldn't get my head around what was or meant. Thank you ever so much. :D

@millerlkme01 Год назад

The style of teaching in this video is so clear and easy to understand. Excellent format!

@saik6788 9 лет назад

Hey Tyler! I really hope you respond! I am in eight grade and currently taking advanced science, the topic for eight grade is physics. I've honestly struggled so much this year. It's been insanely complicated to comprehend this crap. I didn't understand anything! My science teacher just gives us guided reading and a mini activity to help us. Then when the test comes, everyone fails. Then she uses the same excuse, "advanced science students don't get study guides." I barely understood anything and that fact that we don't receive study guides made it worse! But thank you so much for taking some of your time to explain science to people like us. Your videos have been very helpful and I love the examples you use. You certainly know what questions students want answers to! I love your videos so much and they've helped me understand things like valence electrons, etc. THANK YOU SOO MUCH! Please keep doing what you're doing in! I hope you have a nice life!!!!

@saik6788 9 лет назад

Ps: I wish your were my science teacher, lol.

@AbdullahQureshi1 9 лет назад

sai keerthana Karothu subscribe for me guyes!

@SparkyonPC 8 лет назад

+sai keerthana Karothu Ah, glad to see a fellow Indian intelligent enough to find better explanations on RU-vid.

@jerrycorrea5974 6 лет назад

I Love UAE no

@sophiemontecalvo7503 6 лет назад

This was so helpful!!! Thank you, chemistry god!!

@72PSI 5 лет назад

LOVE how this guy explains stuff. Clear , concise and easy to follow. Thank you : )

@estrobart6785 3 года назад

Oh my word I never understood like any of this until I watched this video. Now everything makes sense! Nobody likes chemistry, but with you it's not as boring! Thank you so much! I can tell you work very hard on your videos.

@yoyosk8r1 10 лет назад

Thank you so much man! You deserve the best.

@sicktoaster 10 лет назад

I came here to learn about how you find the number of valence electrons for the transition metals. Do you have such a video?

@kimpatterson7053 4 года назад

Seriously! You helped me so much. I love all your examples and analogies. Thank you for all the work you put into your videos.

@Nicro328 6 лет назад

When I first entered a chemistry class, I was often lost and confused due to the the way it was taught. An understandable outcome, given that the lecturer is presenting the material to a large body of people, rather than a single individual. Tyler does such a great job at presenting the material in an easy to digest fashion. Which was originally complex, chemistry is being pressnted in a new light for me -- one filled with wonder and appreciation. While most will consider chemistry to be rigid and structural, both of which it is, I choose to view it as something akin to art. Being able to see all the theories and principles that are the fundamental bodies for our world has illustrated a sense of interconnectedness that was previously unbeknownst to me. Thank you, Tyler, for all the work that you do.

@briannahall3850 4 года назад

this was very helpful. thank you for making this video.

@andredeboer5636 8 лет назад

Awesome, great explanation!

@triforcehero6264 3 года назад

Thank you, my teacher did a good job of having you explain this to my class rather than having a boring lecture. You can really make a topic seem interesting, and I would like to say you did a good job. I hope you get to 1 mil subs!

@mercedeshake7863 4 года назад

You made this topic so interesting to me and I would have been so bored if someone else was teaching this! You made everything sound like it was a mystery waiting to be solved and then you solved it and found another one! Thank you!

@danitamendes1278 9 лет назад

Hi Tyler 🙋🏻 thank u so very much for ur explanations . But I have a problem understanding quantum numbers 😔if u can please do make a video explaining all that (eg: orbitals orbits subshells n so on ) thanking you in advance 😊😊😘

@mediwise2474 4 года назад

Is there any video on this by him

@livliv2719 5 лет назад

Tyler, you're my man. Thank you.

@theveganpages862 8 лет назад

been trying to learn them on the run while studying nutrition, your video was so helpful, you seem to be able to cover all those little details and questions i ask myself as i watch a video on chem. most others skip over those basic explanations, so thank you so much!!!

@eisham2002 9 лет назад

You are amazing please do not stop teaching i spent a whole semester in Chemistry and learned nothing, I watched four of your vidies and I feel understand chemistry now you are amazing I am so glad I found your channel it has helped me so much thank you.

@219mlc 10 лет назад

Thank you so much! I am taking Micro and I have never had Chemistry and apparently I must be the only idiot in the class that didn't understand what the professor was talking about, probably do to the fact that she blew right through all of chapter 2 (chemistry principles). Shew! Thank you, your video was fun to watch as well and easy to understand.

@gracep3766 10 лет назад

thx that was exactly what I was looking for

@skyhoward2050 7 лет назад

you are my favorite chem youtuber! Seriously saving this 30 year old with no previous chemistry knowledge so that I can keep up in my class!!

@greatercomfortheatingair8454 7 лет назад

you are literally my favorite person. The instructional vid's are amazing and you're channel helps me soooo much. don't know what I'd do with out you bro.

@tdmleg1tgamer553 7 лет назад

I love your explaining u saved me, man You earned yourself a sub and a like thank you, i was lost

@soorejmg 10 лет назад

I wish you were my teacher. :) super!

@nikosroom1913 8 лет назад

You explained this WONDERFULLY! Your voice is so calm and easy to listen too. Lol seriously good job, I subscribed!

@rebecca2443 6 лет назад

you're such a great teacher! I've been watching all your videos and they are so helpful. i love that you're passionate about what you do. you rock!

@zero_bf 6 лет назад

THANK YOU! I UNDERSTAND NOW!

@naomisavv 7 лет назад

Oh no I have a test tomorrow I'm completely lost

@Celestials1aurora 5 лет назад

Naomi Savv did you pasd

@angelbautistagarcia3234 4 года назад

@@Celestials1aurora lol i think she did she prably in college now

@s.sterling6685 4 года назад

@@angelbautistagarcia3234 ye ahaha

@nicooisdestroyingyou.8026 4 года назад

Did you pass

@W-I463 3 года назад

don't leave us hanging

@bajrovejo6514 9 лет назад

i really love the way you present the material so professional and clear, thank you !

@user-ht3pi8eh3z 8 месяцев назад

This video is still helping me and my classmates 10 years later! Thank you, it makes so much sense now!!

@boreddrawer0428 3 года назад

This video is a pog champ!

@narendhankani5015 7 лет назад

Sir, why did you stopped making videos

@Marisol3069 2 года назад

His explanation is incredibly organized making it easy to follow.

@ironCheval 2 года назад

These are really well prepared lessons. The visual aspect helps me a lot. Thank you for making these :)

@i5879 5 лет назад

I wish my teachers taught as clear as this

@smayhem4963 8 лет назад

I love your channel so bad. Please replace my chemistry teacher.

@robertfiala8366 8 лет назад

+Mr.Dark same

@rai6373 8 лет назад

+Sabre ™ mine is confusing

@anisha7040 7 лет назад

sincerely want to comment on every single one of your videos to tell you how amazing of a teacher you are!

@CarlosGomez-vt9pk 6 лет назад

Impressive teaching method. Clean and comprehensible. I was thinking of a similar method and now I find the template. Well done!

@CookieMuncher-ie3ii 4 года назад

TEACHER: sort of a real big periodic table ME: looks like an advanced gaming key board to me,

@CallMeMitty 10 лет назад

helpful

@BrownPen_BluePen 5 лет назад

Hey, thanks for taking the time to make those cut outs. It really helped illustrate the point.

@oblyviapa 5 лет назад

You do a really nice job on these. I am just brushing up for a master's level material science class and I enjoy the effort put into trying to clearly explain these ideas.

@EpicfinchAnimations Год назад

hi how are you doing in 2023

@vinnylt2408 9 лет назад

Tyler DeWitt 14:10 God Mode Activated!

@Psychopathicviewer 9 лет назад

Up-Up-Down-Down-Left-Right-Left-Right, B, A, SELECT, Start. :3

@johnmcgoffers 9 лет назад

Clown Yay infinite lives!! woot woot!

@mysticsone9469 8 лет назад

You are the best!

@jeffrichied4521 3 года назад

Amazing!! I’m teaching chemistry for the first time this year but the text doesn’t discuss spd shells & valence electrons till the end of the course!?!?? I remember (30 years ago :)) that this was fundamental to my chem class & it made understanding compounds so easy when you know this. Thx for the fabulous explanation!! I’ll definitely be using this in my class.

@lkshwz 7 лет назад

Thank you, Tyler Dewitt. You explain chemistry in a clear, concise and simple manner. Wish you were my chem teacher.

@thomasandrews4163 8 лет назад

I get how to make molicules, but how do I craft a fence in minecraft??? xDDDDD

@billyma6 6 лет назад

Two sticks on the bottom center and middle squares, and any wood planks to the left and right of those.

@coleblake461 4 года назад

This guy somewhat resembles spencer reid from criminal minds

@DepressedStressedlemonzest 2 года назад

I wish you were my chem teacher, you teach so well and you even make chem look interesting

@MichelleBrown-mh5ze 4 месяца назад

Thank you SO much for breaking this down so well for me! I was so lost, and you quickly and thoroughly explained this so well! 👏🏼

@gerikaza 9 лет назад

Careful some of the things are not correct for example 10 electrons per valence is not true you can only have 8 per valence because atoms gravitate towards 8(octet)

@tdewitt451 9 лет назад

What? When did I ever say that there are 10 electrons in the valence shell? Also, after the 3rd shell you have 18 electrons per valence level, but never 10.

@marchanselthomas 9 лет назад

Tyler DeWitt he is right ,.....he never did say that there were 10 electrons. anyways tyler...the video is awesome.....come out with more

@marchanselthomas 9 лет назад

geri kaza... u shud delete this false comment of yours.

@rraceyllacey 9 лет назад

Marc Hansel Marc Hansel 'Should' not 'Shud'

@danconner6246 9 лет назад

Hvens Fury this is a chemistry video, not spelling. My neighbors kid made a video about elementary school spelling bees. Maybe that's the video you're looking for.

@onlyjs583 5 лет назад

2019 anyone

@shakia1111 3 года назад

I would love to have you as a professor. Thank you so much for all of your videos. ❤

@akundiprasad 10 лет назад

I am very much impressed with these videos. I am learning basics now. This is like a refreshing course. The way Tyler Dewitt is explaining is appreciable. Thanks for uploading.