2.
the number of electrons on the outermost level is always equal to the group number. Barium is group 2 therefore it's outermost energy level contains 2 electrons
Neutral barium atoms have two 6s electrons in their highest occupied energy level.
3.
Increase in positive charge draws electrons closer to the nucleus. Increase in the number of occupied orbitals shields electrons in the highest occupied energy level from the attraction of proteins in the nucleus.
The electronic configuration of chlorine is 2,8,7 So there are 7 electrons in the valence shell (or highest energy level).
3p is the highest "occupied" orbital of an "unexcited" neutral Silicon atom.
Sodium: Na(2, 8, 1 ) so there is one electron in the highest (3rd) level
Sr has two electrons in the highest occupied energy level
The 3rd energy level is the highest occupied energy level for chlorine with seven electrons.
the period number tells which is the highest energy level occupied by the electrons
the period number tells which is the highest energy level occupied by the electrons
inner shell electrons : the electrons that are not in the the highest occupied energy level .
There are 3 valence electrons in the highest energy level of Nitrogen. Nitrogen has a total of 5 valence electrons.
the period number tells which is the highest energy level occupied by the electrons
8 electrons
inner-shell electrons
3
Eight.
There are two electrons.