Give the electronic configuration for beryllium and then convert it to noble gas notation.

Question

Electronic configuration:

Answer 1

The electronic configuration for beryllium is 1s^2 2s^2.

Converting it to noble gas notation, we find that beryllium's electron configuration is [He] 2s^2.

Note: [He] represents the electron configuration of the noble gas helium, which has the electronic configuration 1s^2. This notation is used to represent the filled inner electron shells before the valence electrons.