Electrons
it very easy: whatever row the element is in is the number of energy levels it has. Example: hydrogen in the first row, it has 1 energy level.Read more: How_do_you_find_number_of_energy_levels_in_an_element
7 electrons
The period tells you how many energy levels an atom has.
no , it only emits energy if it moves from a higher energy level to a lower energy level.
You shouldn't use terms like "outer level", because they're confusing. It could potentially mean at least two things, specified more precisely below. The highest occupied energy level of a ground state neutral carbon atom, the 2p level, has two electrons. The number of electrons in a ground state neutral carbon atom that have a principal quantum number of 2 (the highest associated with any electrons in such an atom) is four.
Electrons...MoMMy =)
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
The 2s and 2p sublevels in the second principal energy level are completely occupied in the ground state of a sodium atom.
the period number tells which is the highest energy level occupied by the electrons
The 3p level
the lowest energy level occupied by an electron when an atom is in its most stable energy state
3.
it very easy: whatever row the element is in is the number of energy levels it has. Example: hydrogen in the first row, it has 1 energy level.Read more: How_do_you_find_number_of_energy_levels_in_an_element
There are two electrons.
7 electrons
An electron in the outermost energy level of an atom is called a valence electron.(We refer here to the outermost occupied levels of an atom. There are, of course, many other higher energy levels normally available that are not occupied.)These electrons determine the chemical reactivity of the atom.the valence electrons