Give the outer electron configuration for each of the following columns in the periodic table.

1)
3A
Express your answer as a string without blank space between orbitals. For example, the outer electron configuration for the column 5A, ns^2np^3, should be entered as ns^2np^3

2)
4A
Express your answer as a string without blank space between orbitals. For example, the outer electron configuration for the column 5A, ns^2np^3, should be entered as ns^2np^3

3)
6A
Express your answer as a string without blank space between orbitals. For example, the outer electron configuration for the column 5A, ns^2np^3, should be entered as ns^2np^3

4)
8A
Express your answer as a string without blank space between orbitals. For example, the outer electron configuration for the column 5A, ns^2np^3, should be entered as ns^2np^3