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18 February, 20:16

In which list are the elements arranged in order of increasing atomic mass?

A) CI, K, Ar

B) Fe, Co, Ni

C) Te, I, Xe

D) NE, F, Na

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  1. 18 February, 20:24
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    It would be A) Cl, K, Ar

    Because Cl=35, K=39, Ar=40
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