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12-12-2016
Chemistry

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What element has three electrons in its 5d sublevel?
Select one:
a. Nd
b. Nb
c. Ta
d. U

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scme1702 scme1702

12-12-2016

C. Ta
Tantalum is an element with an atomic number of 63 and its electronic configuration is:
[Xe] 4f¹⁴ 5d³ 6s²

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