∆H°f, of diamond is
1) O kj mol-1
3) 38.1 kj mol-1
2) 1.90 kj mol-1
4) 20 kj mol-1
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Atoms of some elements gain electrons while forming ionic compounds and atom is able to gain an electron only when the electron outside the atom is attracted by its nucleus attraction in the worlds by Liberation of energy
Explanation:
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