Match (A) ionisation energy, (B) atomic size, (C) electron affinity, (D) electronegativity, (E) ionisation potential with its correct definition given in (i) – (v) below.
(i) The work done in removing an electron from the outermost orbit of a gaseous atom.
(ii) The energy change when an atom accepts an electron in its outermost shell
(iii) The energy required in removing an electron from the outermost shell of a gaseous atom
(iv) The distance of the electron in the outermost orbit of an atom from its nucleus.
(v) The power of the atom to attract electron or electrons in a chemical bond.

Explanation

To match the terms with their correct definitions, we will analyze each term and its corresponding definition step by step.

### Step-by-Step Solution:

1. **Identify the Terms and Definitions**:
- Terms:
- (A) Ionisation energy
- (B) Atomic size
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