Question

what is the correct electron configuration for neon? 1s²2s²2p⁵3s¹ 1s²2s²3s⁵3p¹ 1s²2s²2p⁶ 1s²2s²3s³3p³

Explanation:

Step1: Determine the atomic number of neon

Neon (\(Ne\)) has an atomic number of \(10\), which means it has \(10\) electrons.

Step2: Fill the electron orbitals

• The \(1s\) orbital can hold a maximum of \(2\) electrons: \(1s^{2}\).
• The \(2s\) orbital can hold a maximum of \(2\) electrons: \(2s^{2}\).
• The \(2p\) orbital can hold a maximum of \(6\) electrons: \(2p^{6}\).
• Adding these up: \(2 + 2+6=10\) electrons.

Answer:

\(1s^{2}2s^{2}2p^{6}\) (the third option)