The word "valance" is used to describe electrons in the outer-most energy level of an atom.
Oxygen has six valance electrons.
Six electrons in the outer shell of 'Group 16' elements
8 electrons
One electron.
0. All electrons will pair if there is an even number
Helium has only two electrons with one ring (or energy level). Both the electrons are in the one and only energy level / shell / ring.
8 electrons are needed in the outer level to become a stable element.Writing A Bohr Atomic Model (LEVELS):1st level- Up to 2 electrons2nd level- Maximum of 8 electrons3rd level- 18, 8, or less electrons4th-7th level- 32, 18, 8, or less electrons
There are 2 electrons in the inner level, 8 electrons in the middle level, and exactly 6 electrons in Sulfurs outer level.
Boron has 3 electrons in it's outer level.
7Fluorine has 7 electrons in the outer level.
10 electrons
Nitrogen has 5 electrons in its outer shell, and Bromine has 7 electrons in its outer shell.
Two electrons
8 electrons
There are three electrons in boron's outer energy level.
Two electrons
5
3
one