Question

Describe factor which effect electron affinity ?

Answer 1

Answer:

Various factors that affect electron affinity are atomic size, nuclear charge and the symmetry of the electronic configuration. ... The attraction between the nucleus and the incoming electron decreases. Due to this, the electron affinity will have smaller value. For example, potassium has higher atomic size than sodium.

Answer 2

The factors affecting the electron affinity are the Atomic size and Nuclear charge.

Explanation:

Atomic size:

• As the atomic size increases, the distance between the nucleus and the incoming electron also increases.
• Thus, the attraction between the nucleus and electron further decreases and the affinity will have a smaller value.

Nuclear charge:

• It is a common thing that if the nuclear charge will increase, the attraction of incoming electron increases.
• Thus, the electron affinity increases.