Question

a)write the significance of quantum numbes n, 1 and m
b) State pauli's Exclusion principle
c)write the Electronic
configuration of copper (Z=29)​

Answer 1

Answer:

a)

(n)—this designates the size of the orbital, also called the shell.

(l)—this describes the shape of the orbital, but again, you can relate it back to the periodic table.

(m)—this describes the orientation of the orbital in space, or the direction along the axes in which it faces.

b) Pauli's Exclusion Principle states that no two electrons in the same atom can have identical values for all four of their quantum numbers. In other words,

(1) no more than two electrons can occupy the same orbital

(2) two electrons in the same orbital must have opposite spins

c) The atomic number of Cu is 29. Its electronic configuration is [Ar]3d104s1.