Question

Which of the following elements does not lose an electron easily?

• A. Na
• B. F
• C. Mg
• D. Al

Answer 1

The correct option is B

F

Explanation for the correct option:

1. Fluorine being the most electronegative element in the Periodic table, it attracts the electron towards itself readily.
2. Fluorine have highest effective nuclear charge so it won't lose an electron easily.

Explanation for the incorrect options:

A) Na: Na has the tendency to lose an electron readily to attain the octet configuration.

C) Mg: Mg also loses two electrons to attain the stable configuration.

D) Al: Al loses three electrons readily to acquire the octet configuration.

So option (B) is the correct answer.