- Physical Sciences
a white crystalline organic compound used as a fertilizer, in medicine and in resins.
a diagram that shows the electrons in the outermost occupied shell of an atom as dots or crosses...
6,02 x 1023 particles or objects. Also known as the number of particles in one mole...
the levels of energy in which electrons move and which have fixed amounts of energy.
a solution to which a little base has been added to a lot of water.