Which Element Has the Following Electron Configuration: 1S₂ 2S₂ 2p6

question 163

Multiple Choice

Which element has the following electron configuration: 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 3d10 4p6 5S₂ 4d5?

• A)Br
• B)Mn
• C)Nb
• D)Tc
• E)none of the above

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