Chemistry, 12.12.2021 19:10, Nowellkwaku

Which statement about the Periodic Table is correct? A Elements are arranged in order of decreasing proton number.
B Group number is the number of electron shells in atoms of the elements in the group.
C Group numbers can be used to predict the charges of ions.
D Metallic character increases left to right across a period.

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Which statement about the Periodic Table is correct? A Elements are arranged in order of decreasin...