Question

Define :

i. Ionisation potential.

ii. Electron affinity.

How do they vary in period 3?​

Answer 1

Answer:

1. In physics and chemistry, ionization energy or ionisation energy is the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.
2. The electron affinity of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion.
3. Across the period, the valence electrons for each atom are in the 3-level. They are screened by the same inner electrons. The only difference is the number of protons in the nucleus. From sodium to chlorine, the number of protons steadily increases and so attracts the bonding pair more closely.

please follow m

Answer 2

Answer:

I) energy required to remove the outermost electron from the atom.

along the period 3,it increases.

ii)the energy released when electron is added to the atom.

along the period 3,it increases.