which would you expect to be bigger Be or O based on atomic radii

Question

Question

science chemistry

Answer 1

Answer #1

Be = atomic number = 4

O = atomic number = 8

In a period, from left to right , atomic radius decreases.

2nd period : Be - B - C - N- O

Hence,

Be expected to be bigger then O based on atomic radii.

Atomic radius of Be = 105 pm

Atomic radius of O = 60 pm

Answer 2

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