Which of the following is larger then the atomic radius of phosphorus
Options
a: the ionic radius of phosphorus
b: the atomic radius of argon
c: the atomic radius of nitrogen
d: the ionic radius of chlorine

a)the ionic radius of phosphorus

Explanation:

phosphorus=2.8.6

for phosphorus to become stable(2.8.8) it gains two electrons thus the ionic radious increases bcz of the gained electrons

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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