Standards Project

Adam Berntson

Atomic structure,Atomic nucleus,Isotopes

Atoms are the basic units of matter. The structure is made up of protons, neutrons and electrons. Almost all of the mass of an atom is located in the nucleus. isotopes are atoms with the same number of protons and different number of neutrons.

Valence electrons

It is the outermost shell of the atom. It can participate in forming chemical bonds with other atoms

Chemical bonds

An ionic bond is a type of chemical bond that involves a metal and a nonmetal ion