(A) Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table
(R ) Halogens have the smallest size in their respective periods and high effective nuclear charge

Options

A. Both (A) and (R ) are true and (R ) is the correct explanation of (A)
B. Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
C. (A) is true but (R ) is false
D. Both (A) and (R ) are false

Answer

A