A phosphorus atom has 15 electrons in total. The electron configuration of a phosphorus atom is 1s² 2s² 2p⁶ 3s² 3p³.

The 2nd principle energy level (n = 2) includes the 2s and 2p sublevels.

The 2s sublevel has 2 electrons and the 2p sublevel has 6 electrons.

So, the 2nd principle energy level of a phosphorus atom has 2 + 6 = 8 electrons.

Question

A phosphorus atom has 15 electrons in total. The electron configuration of a phosphorus atom is 1s² 2s² 2p⁶ 3s² 3p³.

The 2nd principle energy level (n = 2) includes the 2s and 2p sublevels.

The 2s sublevel has 2 electrons and the 2p sublevel has 6 electrons.

So, the 2nd principle energy level of a phosphorus atom has 2 + 6 = 8 electrons.

Knowee AI · Accepted Answer

A phosphorus atom has 15 electrons in total. The electron configuration of a phosphorus atom is 1s² 2s² 2p⁶ 3s² 3p³.

The 2nd principle energy level (n = 2) includes the 2s and 2p sublevels.

The 2s sublevel has 2 electrons and the 2p sublevel has 6 electrons.

So, the 2nd principle energy level of a phosphorus atom has 2 + 6 = 8 electrons.

How many electrons are in the 2nd principle energy level (n = 2) of aphosphorus atom?