My mom!
the period number tells which is the highest energy level occupied by the electrons
The energy levels of an atom hold electrons.
They are smaller in magnitude than those between lower energy levels.
a sulfur atom has 3 energy levels. 2 on the first. 8 on the second and 6 on the third
Electrons.
Yes there are
2
An atom's energy levels are orbitals which can contain 2 electrons each, assuming that they are traveling in opposite directions from each other.
The energy of a Photon is equal to the difference in the energy level of the Atom that it came from.
An atom has multiple energy levels. When an atom has more electrons than it can fit into an energy level, then it puts them into the next higher energy level.
The highest occupies energy level in aluminum is the 3rd energy level. Its electron configuration is 1s22s22p63s23p1.