This is a chemical element. You can find the how many electron in a single atom by using a Periodic Table.
In an aluminum atom, there are three electron energy levels that are occupied: 1s, 2s, and 2p. The 1s level can hold up to 2 electrons, and the 2s and 2p levels can each hold up to 6 electrons, for a total of 14 electrons in the aluminum atom.
Aluminium Al: 13 2.8.3 So three energy levels
The electron configuration of aluminum is [Ne]3s23p1.
Aluminum has 3 valence electrons.
there is 2 full electron levels in sodium!!
The electron configuration of aluminium is [Ne]3s2.3p1.
The electronic configuration for aluminum is 1s22s22p63s23p1 .
Sulfur has three full electron levels.
The electron configuration for aluminum atoms, which is 1s22s22p63s23p1.
The highest occupies energy level in aluminum is the 3rd energy level. Its electron configuration is 1s22s22p63s23p1.
Aluminium has three electron shells with 2,8,3 electrons each.
Technetium has five electron shells.