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16 March, 18:00

State the periodic law, and explain its relation to electron configuration. (Use Na and K in your explanation.)

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  1. 16 March, 18:22
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    The period law state that when elements are listed in order of their atomic numbers, the elements fall into recurring groups, so that there is a recurrence of similar properties at regular intervals.

    Na and K in the periodic table fall into the same group, this is because they both have one electrons in their outermost shell.

    Na 11 - 1s2 2s2 2p6 3s1

    K 19 - 1s2 2s2 2p6 3s2 3p6 4s1

    They share similar chemical and physical properties. Na and K are very reactive metals, they can loose/donate their outermost electron to non metals in other to attain stable octet state.

    The form ionic compound when they react with non metals.
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