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8 April, 08:52

What is the number of valence electrons in each of the main groups on the periodic table?

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  1. 8 April, 12:18
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    Column 1: Alkali has 1

    Column 2: Alkaline has 2

    Column 13: Boron group has 3

    Column 14: Carbon group has 4

    Column 15: Nitrogen group has 5

    Column 16: Chalcogens has 6

    Column 17: Halogens has 7

    Column 18: Nobles gases has 8
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