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this consists of three separate layers of the Earth â the crust, the mantle and the core.
valence shell electron pair repulsion theory (VSEPR) is used to explain the shapes of molecules...
the energy level, or shell, of an atom that contains the valence electrons.
the theory whereby molecules undergo effective collisions to form new molecules.
the ordered three-dimensional arrangement of the particles of a crystal in an ionic bond or...
the phase change of a substance from the gas phase to the solid phase, without passing through...