Within an electron configuration, what do symbols such as [Ne] and [Kr] represent?

Solution 23Q

Here, we are going to discuss what the given symbols represent in an electronic configuration.

Step 1:

In writing the electronic configuration, an orbital is shown by using its proper symbol.The number of electrons present in an orbital is shown as the right-hand superscript of the symbol of the orbital.

For example, the electronic configuration of hydrogen is 1s1. This means that the single electron in hydrogen occupies the s orbital present in the principal energy level n = 1. Similarly the electronic configuration of other elements are written.