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26 February, 05:27

What element has three electrons in its 5d sublevel?

Select one:

a. Nd

b. Nb

c. Ta

d. U

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Answers (1)
  1. 26 February, 06:08
    0
    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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