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The d-and f-Block Elements
write the electronic configurations of the element...

Question:
Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

Answer:

Atomic number Electronic configuration

61
[Xe]⁵⁴ 4f⁵ 5d⁰ 6s²

91
[Rn]⁸⁶ 5f² 6d¹ 7s²

101 [Rn]⁸⁶ 5f¹³ 5d⁰ 7s²

109 [Rn]⁸⁶ 5f¹⁴ 6d⁷ 7s²

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Question:
Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

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Atomic number	Electronic configuration
61	[Xe]⁵⁴ 4f⁵ 5d⁰ 6s²
91	[Rn]⁸⁶ 5f² 6d¹ 7s²
101	[Rn]⁸⁶ 5f¹³ 5d⁰ 7s²
109	[Rn]⁸⁶ 5f¹⁴ 6d⁷ 7s²

Question: Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

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Question:
Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.