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

asked Jan 23, 2016 155k views

5 votes

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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6 votes

It would be A) Cl, K, Ar
Because Cl=35,K=39,Ar=40

DrHall answered Jan 29, 2016

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