Question

Write electron (subshell) configurations for the following atoms:

19K 35Br

Answer 1

4s¹ and 3d¹⁰ 4s² 4p⁵

Step-by-step explanation:

19K

Potassium has 19 electrons

The electron configuration for 19K is: 1s2 2s2 2p6 3s2 3p6 4s1

4s¹

35Br

Bromine has 35 electrons

The electron configuration for 35Br is: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5

3d¹⁰ 4s² 4p⁵