- Physical Sciences
the mass of any substance relative to the amount of the substance; the mass of one mole of any substance, whether it is an atom, a molecule or a compound expressed in grams per mole (g.mol-1)
a lobe-shaped orbital in which electrons may move. There are 3 p orbitals per energy level from...
a chemical reaction in which two or more chemicals combine to form a more complex product.
contains an unpaired electron on a carbon atom bonded to only one other carbon atom.