The electronic configuration 1s²2s²2p⁶3s²3p⁶ is that of a

JAMB Chemistry 2024 276 views
Source: JAMB · 2024

The electronic configuration 1s²2s²2p⁶3s²3p⁶ is that of a

  1. noble gas ✓
  2. Group ll element
  3. Group lll element
  4. Group Vl element
Explanation

Add the electrons: 2 + 2 + 6 + 2 + 6 = 18. This is argon.

Its outer shell, 3s²3p⁶, holds eight electrons and is full, so argon is a noble gas.

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