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13 March, 13:37

How many molecular orbitals are present in the valence band of a sodium crystal with a mass of 7.90 g?

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  1. 13 March, 14:12
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    Number of atoms equal the number of molecular orbitals as each atom has 1 atomic orbital and 1 electron.

    Therefore,

    Number of atoms = (mass/molar mass) * Avogadro's number = (7.90/22.99) * 1.36*10^23 = 4.67*10^22 atoms.

    Then,

    Number of molecular orbitals = 4.67*10^22
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