Question

Arrange the following in decreasing atomic size:
i) Na, Mg, K
ii) N, F, O
iii) N, S, P
Please answer the question fast​

Answer 1

Left to right it decreases and across a period, so

K, Na, Mg

N, O ,F

N ,P ,S

Answer 2

the answer is :

I) K, Na , Mg

ii) N, O, F

iii) N, P, S