Class-XII d- and f-Block Elements (Ionization enthalpy, Coloured ions and Density) 

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Density increase hoga na left to right ?

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Mam here the volume decreases therefore density increases from grp 3 to grp 11.but u r telling density is decreasing which is wrong please correct it mam....

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Present M'am........🙋

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Mam I have a question please, if sodium and potassium wants to attend noble gas configuration themselves by losing one electron , then why energy is required to remove electron in the form of ionization enthalpy?

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