Using only a periodic table as a guide, how do you write the condensed electron configurations for the following atoms?

Question

Rh

Si
3.Hg

Hf?

5795 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-09-02T02:50:14

Here's what I get.

1. $"Rh" = "[Kr]" 5s 4d^8$
Note: This is an exception to what you would predict from th Periodic Table.

2. $"Si" = "[Ne]" 3s^2 3p^2$

3. $"Hg" = "[Xe]" 6s^2 4f^(14) 5d^(10)$

4. $"Hf" = " [Xe]" 6s^2 4f^(14) 5d^2$