Question Detail

CHM 101 Chemical Bonding and Molecular Structure Objective Question

Question

Why does a sodium atom tend to form an ion by losing one electron?
Options
A It has one electron more than a stable noble gas structure
Correct Answer
B It has one electron short of a stable noble gas structure
C It has a full valence shell
D It has seven valence electrons
Correct Answer

Option A is the correct answer.

Detailed Explanation

Sodium (2,8,1) has one electron more than a stable noble gas structure (2,8). By losing that electron, it achieves a stable electron configuration similar to neon, forming a Na⁺ cation.

Hint

Atoms tend to achieve stable noble gas configurations by gaining or losing electrons.

Question Info