Atomic structure, Day5, CH101

2 electrons in an orbital can be distinguished by

• principal quantum number

• orbital angular momentum quantum number

• Magnetic Quantum Number

• spin quantum number

For l= 2, the value of m will be

• 1

• 13

• 5

• 7

The ion which has 5 odd electrons is

• Fe⁺²

• Cr⁺³

• Mn⁺²

• Ti⁺²

The ejection of electrons from the surface of a metal by light is called

• Zeeman effect

• Compton effect

• Photo electric effect

• None

Which is not correct

• n= 3, l= 2, m= 1

• n= 3, l= 2, m= -2

• n= 3, l= 3, m= -2

• n= 4, l= 2, m= 1

The radius of the first orbit of hydrogen atom is

• 0.53 Å

• 0.35Å

• 0.053 Å

• 0.035 Å

The set of quantum no. of 21st electron in Mn is

• 3, 2, -2, +1/2

• 4,0,0, +1/2

• 4, 1, -1, +1/2

• 3,1,0, +1/2

electron configuration, the term with maximum multiplicity has the lowest energy

• Hund's rule

• Pouli's Exclusion principle

• Aufbau principle

• None