In Each of the Following Pair, Choose the Atom Having the Bigger Size: Na (At. No. 11) Or K (At. No. 19) - Science
In each of the following pair, choose the atom having the bigger size:
Na (At. No. 11) or K (At. No. 19)
K has a bigger size than Na because the atomic size increases on going down in a group of the periodic table. Na and K belong to group 1 of the periodic table.
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