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the SI unit of amount of substance. 1 mole contains the same number of particles as there are in 12 g of carbon-12 atoms.
a number that indicates how the atom will react during the formation of chemical bonds.
a state in which the outer energy level of an atom of any element is completely filled with...
a method used to refine petrol by breaking covalent bonds between carbon atoms using heat and a...
a lobe-shaped orbital in which electrons may move. There are 3 p orbitals per energy level from...