Question

The correct order of increasing radius of the elements Si, Al, Na and Pis:
O Si < Al < P < Na
OP < Si < Al < Na
O AL < Si < p < Na
O AL < P < Si < Na​

Answer 1

Answer:

option b

Explanation:

atomic radius decreases from left to right along a period

Answer 2

Answer:

P < Si < Al < Na

Explanation:

P < Si < Al < Na is the correct order of increasing radius of the elements Si, Al, Na and P.

In general, atomic radius decreases across a period and increases down a group.