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3 September, 05:44

Why does the black carbon ball have 4 holes while the white hydrogen ball only has one hole?

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  1. 3 September, 07:57
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    In atomic models balls represent an atom

    Now if an atom like carbon has four holes it means it can bond with four atoms. It has valency = 4.

    The atomic number of carbon is 6

    the configuration is 1s2 2s2 2p2

    So due to four valence electrons it can bind with four other atoms and thus we have four holes in carbon ball

    The hydrogen show a valency of one

    the atomic number of hydrogen = 1

    its configuration is 1s1

    So it can bind with one atom (max) thus we have one hole in hydrogen ball
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