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CHM 101 Periodic Table & Trends Objective Question

Question

Atomic size decreases across a period due to an increase in the nuclear force of __________. (Q4)
Options
A repulsion
B attraction
Correct Answer
C shielding
D gravity
Correct Answer

Option B is the correct answer.

Detailed Explanation

The increasing positive charge (more protons) exerts a stronger attractive force on the electron cloud, pulling it in and decreasing the atomic radius.

Hint

The nucleus pulls electrons inward.

Question Info