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(also called allotropism) the property of some chemical elements to exist in two or more different structural forms of the same element, for example diamonds and graphite are allotropes of carbon.
when energy is added to an electron in the lowest energy state (the ground state) and it jumps...
a method of determining the concentration of an acid or base by neutralising it with a base or...
completes the circuit between the two half-cells in an electrochemical cell.