No two electrons in an atom can have the same set of four quantum number. This is the statement of
Pauli's exclusion principle
Hund's rule
Aufbau principle
None of these
What is the de Broglie wave length, for particles having same kinetic energy?
Directly proportional to its velocity
Inversely proportional to its velocity
Independent of velocity and mass
Meaningless
Which among the following solids have low melting points?
Hydrogen bonded molecular solids
Ionic solids
Polar molecular solids
Non-polar molecular solids
Isotones are nuclei having
Same atomic numbers
Same mass number
Same number of protons
Same number of neutrons
A wide variety of crystalline solids containing covalent bonds are called
Covalent solids
Molecular solids
Metallic solids
Which orbital have zero electron density in xy plane ?
pz
dz2
dxy
dx2 - y2
What will be the total spin resulting from a d6 configuration ?
3
3/2
1
2
What is the number of electrons in an atom which have n = 4, l = 2, m = -1 ?
10
5
Where does the cathode rays get deflected ?
A magnetic field only
An electric field only
Both electric and magnetic field
