What is the molar mass of magnesium (in g/mol -- just give me the number, with 4 significant figures)?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What is the work done by the electric force to move a 1 c charge from a to b?

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released