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Why was 4s not filled before 3d. I thought it had a lowwr energy level than 3d and so should be filled first. Or is there an exception to the rule. Thanks for your presentatiom. It was helpful
@@nii3589 The 4s is not always lower than 3d because these orbitals actually move and switch places in certain situations. This was discovered and published around 2012. Very cool finding.
Sir i have one doubt that in some exams i have been seen some questions that is magnetic quantum numbers have values positive 2 how can we know that element
Thank you professor, but I'm confused as to why the phosphorus atom couldn't just form a double bond using the the pair of electrons in the 3s orbital if it had to form 5 bonds. 1 double bond + 3 single bonds for a total of 5?
how did you know it yields H2 instead of H at the beginning? where did the other H come from? it was first 2 H's in the reactants then 3 H's in the products idk how you know to do that for similar problems
If the speed of light c depends on wave length (distance) but then distance depends on speed of light... you are using circular logic. No wonder you have to set c to 1 to make Maxwell and so many equations work. No one actually knows the speed of light so they just set it to a constant 1. lmao
@@mrcausey if the speed of light is constant then it isn't a function of anything. c depends on nothing else. you can't just make shit up and say there is some magical speed limit in the universe to fit your approximations on things. that is not logical or sensible.
@@ilovetech8341Nobody is making anything up. The speed of light in a vacuum is the product of wavelength and frequency. However, dispersion slows light when light passes through a medium and is refracted. It is the refractive index that is a function of the wavelength.
@@mrcausey There is no such thing as a speed of light. That is the rate of a wave propogation. And the fact that light "slows down" through glass defies the whole bullshit theory that c is constant for all observers irregardless of frame. It is self evident that c is not constant. And you can produce instant messaging through longitudinal pulse. This whole max c for all observers is just made up fantasy.
I have never commented under a video, thank you so much I love how u start with telling us what we should know before and what we will know, I truly cannot thank you enough THANKSSSS
