What is the formula of the nitrate ion?

Which of the following is the electron dot formula for an atom of fluorine? (a) F. (b) . F .      .     . (c) . F .    .     .(d) : F :   ..    ..(e) : F :     ..

One characteristic of a cation is that

What is the electron configuration for P?

Group 1A elements are also known as

Xe is a member of which family?

Using atomic notation, indicate the isotope having 11 p+, 12 n0, and 11 e-.

Group 2A elements are also called:

An atom containing 29 protons, 29 electrons, and 34 neutrons has a mass number of

What is the predicted ionic charge for a Ba ion?