Question

what is the electron configuration of beryllium?

Answer 1

Here is your answer:

The amount of electrons that the element Beryllium has is: 4

Reason:

Beryllium atomic number is 4

Therefore the amount of protons and electrons Beryllium has is 4

Your answer is 5.

Hope this helps.

Answer 2

Answer: 1s^2 2s^2

Explanation:

Beryllium is the fourth element with a total of 4 electrons. The electron configuration for beryllium is the first two electrons that will go in the 1s orbital. Since 1s can only hold two electrons the remaining 2 electrons for Be go in the 2s orbital. Therefore the Be electron configuration will be 1s^2 2s^2.