Question

Assertion :- Electronegativity increases as we move from left to right in the modern periodic table .
Reason :- Effective nuclear charge acting on the valence shell electrons increases across the period . ​

Answer 1

Explanation:

Correct option is

D

Assertion is false, but the Reason is true.

In the periodic table, the atomic radius decreases from left to right.

The number of protons (the number of electrons and the atomic number) is increasing from left to right.

However, the effective nuclear charge increases as the screening effect are not proper.

Thus, Assertion is false, but the Reason is true.

Hence, the correct option is D