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20-09-2022
Chemistry

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if you can please answer both

if you can please answer both class=

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alneedshelp alneedshelp

20-09-2022

Answer: C & D

Explaination:

C because the atomic number increases sequentially and also the nuclear charge

D because as you're moving down a column the valance electrons does not change, only the atomic radius does.

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