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Chemistry, 20.10.2020 03:01 angelgrant780
Why is Cobalt (Co) placed before Nickel (Ni) on the Periodic Table of the Elements even though it has a higher average atomic mass than nickel?
Nickel has fewer electrons.
Cobalt has a lower density.
Cobalt was discovered first.
Nickel has one more proton.
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Why is Cobalt (Co) placed before Nickel (Ni) on the Periodic Table of the Elements even though it ha...
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