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occurs when an ion in a crystal structure is replaced by a different type of ion without changing the shape of the crystal.
there are not enough electrons to contribute to an ordinary covalent bond.
a substance that can donate or accept a proton. It can act as an acid or a base.
when radioactive particles collide with air molecules, they can cause the molecules to lose or...
the levels of energy in which electrons move and which have fixed amounts of energy.