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the temperature at which a substance changes phase from a solid to a liquid at a specific or fixed pressure.
if one variable increases, the other variable increases at the same fixed rate.
a neutral particle in the nucleus with almost the same mass as the proton.
the scale used to compare the masses of atoms. Atoms are compared to carbon-12 atoms.
a state in which the outer energy level of an atom of any element is completely filled with...
a crystal lattice of positive kernels in a sea of delocalised electrons to which they are...