Which electron configuration best represents bromine?

http://www.webelements.com/bromine/atoms.html

Not sure what to find on this website. Can you help. Thanks

You must not have looked very hard. I clicked through all of the preliminary pages to get to the page you need. Scroll about 1/3 the way down the page and you will see the electron configuration.

To find the electron configuration of an element, we need to refer to the periodic table.

Bromine (Br) is in the 7th period and belongs to Group 17 (also known as Group VIIA or Group 7A) of the periodic table.

To write the electron configuration of an element, we use the following format:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵

This means that bromine has 35 electrons distributed among different electron shells and orbitals.

Let's break down the electron configuration for bromine:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵

The superscripts indicate how many electrons occupy each orbital. For example, in the 5p⁵ configuration, there are 5 electrons occupying the p orbital of the fifth energy level.

Therefore, the electron configuration that best represents bromine is: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵.