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a neutral particle in the nucleus with almost the same mass as the proton.
a substance that can donate or accept a proton. It can act as an acid or a base.
the phase of matter in which the particles are so tightly bound to one another that they can...
a chemical cell in which electrical energy from a battery is used to produce chemical reactions...
the part of the atmosphere that extends to a height of 10 km above the surface of the Earth.