Question

question 16
which element below has the largest atomic radius?
f
s
b
p
n

Explanation:

Atomic radius trends: In a period (horizontal row), atomic radius decreases from left to right due to increasing nuclear charge. In a group (vertical column), atomic radius increases from top to bottom as the number of electron shells increases.

• F (Fluorine) is in period 2, group 17.
• S (Sulfur) is in period 3, group 16.
• B (Boron) is in period 2, group 13.
• P (Phosphorus) is in period 3, group 15.
• N (Nitrogen) is in period 2, group 15.

Since P and S are in period 3 (more electron shells than period 2 elements F, B, N). And in period 3, P is to the left of S. As atomic radius decreases from left to right in a period, P has a larger atomic radius than S.

Answer:

P