support staff meaning, support staff definition | English Cobuild dictionary. support. 1 verb If you support someone or their ideas or aims, you agree with them, and perhaps help them because you want them to succeed. (=back) (Antonym: oppose) The vice president insisted that he supported the hard-working people of New York... V n.
The valence shell is the outer shell of the atom. Some materials have a free electron in their valence shell and this electron can easily move from atom to atom. The free electrons are responsible for electrical current.
In the next sub-unit you will learn about the the outer shell of an atom called the valence shell. Review. Atoms have their electrons arranged in layers called shells. In order to maintain electrical balance the number of electrons is equal to the number of protons in most elements.