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. 1  Atoms have their electrons arranged in layers called shells. 2  In order to maintain electrical balance the number of electrons is equal to the number of protons in most elements.