Out of Ne and `Na^(+)` which has higher ionisation energy and why ?

Explanation

To determine which has a higher ionization energy between Ne (neon) and Na⁺ (sodium ion), we can follow these steps:

### Step 1: Understand Ionization Energy
Ionization energy is the energy required to remove an electron from an atom or ion in its gaseous state. Generally, the higher the ionization energy, the more difficult it is to remove an electron.

### Step 2: Examine the Electronic Configurations
- Neon (Ne) has the electronic configuration: 1s² 2s² 2p⁶. This means it has a total of 10 electrons and 10 protons, making it a stable noble gas.
- Sodium ion (Na⁺) has the electronic configuration: 1s² 2s² 2p⁶. However, Na⁺ has 11 protons and only 10 electrons, resulting in a positive charge.
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