Question

Which of the following is false?
A. The orbital,s are no more degenerate in the presence of a magnetic field
B. The spin quantum number was introduced to explian the spilitting of specvtral lines of hydrogen atom in the presents of a magnetic field
C. Pauil exelssion principle is followed by fermious which have half integral spins
D. The energy of an orbitals in an atomn remains the same with increases in the possitive charge in its nucleus

Answer 1

Correct Answer - D
a. It is due to the fact that the electron inteacts in difference manner with the external magnetic field
b . This spliting is known as Zeeman effect
d. It decreases with increase in the value of atomic number as is evident from the expression
`E = - (1)/(n^(2)) [(2pi^(2)m((Ze^(2))/(4pi epsilon_(0)))^(2))/(h^(2))]`