Question

Use the periodic table in the tools bar to complete the electron configurations for the following elements Beryllium (Be):

Answer 1

The electron configuration for beryllium is 1s²2s².

Step-by-step explanation:

The electron configuration for beryllium is 1s²2s². Beryllium has atomic number 4, so it has four electrons. The first two electrons fill the 1s orbital, and the next two electrons fill the 2s orbital.