Question

The electronic configuration and group number in the periodic table in which the element with atomic number 107 lies are

• A. [Rn] 5f¹⁴ 6d¹ 7s² 7p⁴ , group 3
• B. [Rn] 5f¹⁴ 6d⁵ 7s² , group 7
• C. [Rn] 5f¹⁴ 7s² 7p⁵ , group 7
• D. [Rn] 5f¹⁴ 6d² 7s² 7p³ , group 15

Answer 1

The correct option is B

[Rn] 5f¹⁴ 6d⁵ 7s² , group 7

In accordance with aufbau principle the most stable Electronic configuration is (b) and its group number is 7.