Question

Write down the full electronic configurations for the ions

(a)Os2+

(b) At–.

Answer 1

The electronic configuration for Os2+ can, therefore, be designated as [Xe] 4f¹⁴ 5d⁶

The electronic configuration for At- can, therefore, be designated as [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶