Neon has 10 protons and 10 electrons. How are the electrons filled in the energy levels?

Question

Neon has 10 protons and 10 electrons.  How are the electrons filled in the energy levels?

Olivia Anton · Accepted Answer

#2,8# or #1s^(2)2p^(6)2s^2#

Atomic shells complete the following sequence in a basic model:

2,8,8,16.....

The first two shells are filled because there are ten electrons (2 + 8 = 10 electrons).

Each orbital is taken into account in a more intricate model. Orbitals fill in the order 1s, 1p, 2s, and 2p.

We fill these orbitals until all 10 electrons are present: s orbitals hold two electrons, and p orbitals hold six electrons.

#1s^(2)2p^(6)2s^2#

Two electrons are held in each of the first two s orbitals, six electrons in the first p orbital, and two electrons in the second s orbital. 2 + 6 + 2 = 10 electrons.

Cameron Andrews · Answer

undefined In neon, the electrons are filled in the energy levels according to the Aufbau principle, Pauli exclusion principle, and Hund's rule. Specifically, the 10 electrons are distributed in the following manner: 2 in the first energy level (1s), 2 in the second energy level (2s), and 6 in the second energy level (2p).