Question

The Pauli Exclusion Principle states that at most two electrons can be in a given orbital at one time, this leads to a fourth number, ms, the spin quantum number. This fourth number indicates that an electron has a "spin" of either -1/2 or +1/2. The result of this number is that location of every electron in an atom can be identified by the set of numbers: n, l, ml, and ms. The most important point is that for each orbital to be fully occupied its two electrons must have opposite values of ms; one will have -1/2 (symbolized ↓) and the other +1/2 (symbolized ↑). If an electron is alone in an orbital, the sign of its spin makes no difference.

Question: Describe who Pauli was, his field of expertise and his contribution to the scientific community.

This another question: Write the electron configuration for N, Mg, and Si

Please reply to both question.

Answer 1

Pauli was born in Australian and R_e was an American theoretical physiast Pauli got R_e Nobel prize in 1945 in physics for his discovery of a law of nature or exclusion principle Pauli full name is Wolfgang Ernst friedrich Pauli Pauli contribution in the scientific field is R_e did work on equation mechanics, quantum field, theory and solid state physics Electronic configuration of the element are following: - (1) N (Nitrogen) Atomic number is 7 No. of electron = 7 electronic configuration is 1s^2, 2s^2, 2p^3 mg (magnesium) Atomic number = 12 No. of electron = 12 Electronic configuration is 1s^2, 2s^2, 2p^6, 3s^2 Si(silicon) Atomic number = 14 No. of electron = 14 Electronic configuration is 1s^2, 2s^2, 2p^6, 3s^2, 3p^2