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