Question

The elements with zero electron affinity are

1) Boron and Carbon 2) Beryllium and Helium

3) Lithium and Sodium 4) Fluorine and Chlorine​

Answer 1

Answer:

lithium and sodium has zero electron affinity

Explanation:

as both belong to 1A group

which has no tendency to accept electron....

Answer 2

"B. Beryllium & Helium"

Explanation:

The Zero group is a group of a respectable gas. Respectable gases are supposed to be zero group components since they have zero valencies and they can't join with different components to shape compounds. The zero group components are Helium, Neon, Argon, Krypton, Xenon, and Radon. Zero group components are known as: Inert gases. The answer is option b because the only have fully filled electronic configuration.