Question

write four quantum number for 1S2​

Answer 1

Explanation:

The spin quantum number “ms“ can have values of either + ½ or – ½. ”Spin” is responsible for a number of properties of matter including magnetism. Hydrogen has one electron in a 1s orbital and we write its electron configuration as 1s1. Helium has both of its electrons in the 1s orbital (1s2).