Question

Complete the chart. (Remember to enter a 0 if necessary.)

Atomic Number: 3

1s:

2s:

2p:

3s:

3p:

4s:

3d:

4p:

5s:

Answer 1

1s2
2s1
Hope this helps, feel free to message me if you don't understand it!

Answer 2

Answer: The configuration of lithium element is
`1s^22s^12p^03s^03p^04s^03d^04p^05s^0`

Step-by-step explanation:

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

We are given:

Atomic number = 3

The element having atomic number '3' is lithium

The electronic configuration of lithium element is
`1s^22s^1`

Hence, the configuration of lithium element is
`1s^22s^12p^03s^03p^04s^03d^04p^05s^0`