Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Why do elements in the same group of the periodic table exhibit similar chemical properties?
Options
A They have the same number of valence electrons
Correct Answer
B They have the same atomic masses
C They have the same ionization energies
D They have the same atomic radii
Correct Answer

Option A is the correct answer.

Detailed Explanation

Chemical properties are primarily determined by the number and arrangement of valence electrons. Elements in the same group have the same number of valence electrons, leading to similar bonding behavior and reactivity.

Hint

It's the electrons in the outermost shell that participate in chemical reactions.

Question Info