Which of the following elements would have the largest radius? Why?

K

Cs

Na

H

4 Answers

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  • 1 decade ago
    Favorite Answer

    radius increases down and decreases across the periodic table.

    good luck.

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  • Anonymous
    1 decade ago

    It would be Cs, because on the periodic table, atomic radius increases as you go down a group and increases as you go from right to left across a period. (This is because as you go down a group, a new electron shell is being added and there are less protons on the left side of the periodic table to attract and pull the electrons in, making the atomic radius larger.)

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  • Anonymous
    1 decade ago

    Atomic radius increased down a group of the periodic table. This is due to more electron shells being added, these shells would be partially shielded from the pull of the nucleus.

    Source(s): I'm a chemist =)
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  • 4 years ago

    rubidium ..... the atomic radius will improve on occurring the gang because of the addition of one greater orbit ...and all of the above 4 are of an analogous team -grp 1a or grp a million lithium prd -2 sodium 3 pottassium 4 rubidium 5 cesium 6 francium 7

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