Question

1. As Z stays constant and the number of electrons increases, the electron-electron repulsions _____, and the anion becomes larger.
2. The reverse is true for the cation, which becomes ____ than the neutral atom.

Answer 1

Answer:

1) increases

2) smaller

Explanation:

Generally, as electron- electron repulsion increases and more electrons are added to the atom while Z is held constant, the electron cloud size is increased. The size of the anion formed is usually measured as the size of this extended electron cloud. Hence the larger electron cloud means a larger anion size compared to the size of the neutral atom.

For a cation, the converse is true and the cation is found to be smaller than the neutral atom.

Answer 2

This question is incomplete, I got the complete one from google as below:

I−>I>I+

1. As Z stays constant and the number of electrons increases, the electron-electron repulsions ______ (increases or decreases), and the anion becomes larger.

2. The reverse is true for the cation, which becomes ____ (smaller or larger) than the neutral atom.

Answer:

1. As Z stays constant and the number of electrons increases, the electron-electron repulsion increases, and the anion becomes larger.

2.The reverse is true for the cation, which becomes smaller than the neutral atom.

Explanation:

1. As Z stays constant and the number of electrons increases, the electron-electron repulsion increases, and the anion becomes larger. This is because in anions of the same atoms, the net force of attraction on electrons decreases.

2. The reverse is true for the cation, which becomes smaller than the neutral atom. This is because in cations of the same atoms, the net force of attraction on electrons increases.