7
Dubnium has 105 protons.
Arsenic has 8 levels of energy.
Technetium has five electron shells.
4
Potassium has 1 electron in its outer energy level. When it forms a bond, it typically donates this electron to another element, leaving it with a full outer energy level.
Two electrons
One electron in outermost energy level.
There can only be 1 outer energy level.
There are 18 electrons in total, and the outer energy levels are the 4s and 3d orbitals. Therefore, there are 2 electrons in the 4s orbital and 4 electrons in the 3d orbital, making a total of 6 electrons in the outer energy levels.
1-2
Nitrogen has atomic number = 7. The outer shell has 5 electrons, it requires 3 more electrons to complete the outer energy shell.
Dubnium has 105 electrons.
the energy levels are as follows: first shell 2 second shell 8 third shell 5
Dubnium has 105 protons.
Beryllium and magnesium have two electrons in their outermost energy level, as do all Group 2 elements.
Na, or Sodium, has 3 energy levels. Two electrons in the first level, eight in the second, and one in the third (and outer most) level.
Generally speaking, it would be 8 electrons, but there are many exceptions.