Question
Chemistry Question on p -Block Elements
As the atomic number of halogens increases the halogens
A
Lose the outermost electrons less readily
B
Become lighter in colour
C
Become less denser
D
Gain electrons less readily
Answer
Gain electrons less readily
Explanation
Solution
With increase in atomic number (i.e., going down a group) the ability to gain electrons (i.e., electron affinity) decreases.