Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0. It may help to refer to the periodic table. C:
=1

=2

=3

=4

S:
=1

=2

=3

=4

What is the neutral atom that has its first two energy levels filled, has 4 electrons in its third energy level, and has no other electrons? Enter the name of the element, not the abbreviation.