A neon atom is chemically nonreactive because

JAMB Chemistry 2024 336 views
Source: JAMB · 2024

A neon atom is chemically nonreactive because

  1. the electrons at the outermost shell is partially filled
  2. the number of protons equals the number of electrons
  3. the outer electron shell is completely filled ✓
  4. there are equal number of protons and neutrons in its nucleus
Explanation

Neon has two electrons in the first shell and eight in the second. The outer shell is completely filled.

So neon has no need to gain, lose or share electrons, and it does not react. Having equal protons and electrons is true of every neutral atom.

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