Which one has the same unit that of Planck's constant ?
Energy
Work
Angular momentum
Linear momentum
In an atom with 2K, 8L and 13M electrons,what will be the total number of 'p' electrons ?
12
6
4
2
What will be the total spin resulting from a d6 configuration?
3
3/2
1
What is the ratio between the energy of a photon of 1500 Ao wave length radiation to that of 3000 Ao wave length radiation ?
1/4
1/2
In hydrogen atom if energy of an electron in ground state is 13.6 ev, then that in the first excited state is __________________.
6.8 ev
1.51 ev
3.4 ev
13.6 ev
An element 'm' has an atomic mass 27 and atomic number 13.How can its ion be represented ?
M3+
M2+
M+
M-
How many number of spherical nodes will be in 4p orbitals ?
Zero
What is the Bohr radius associated with hydrogen atom ?
0.529 × 10-10 cm
5.29 × 10-10m
0.529 ×10-10m
0.0529 × 10-10m
Which one of the following does Bohr theory fails to explain ?
Stability of hydrogen
Line spectra of hydrogen atom
Line spectra of Li2+
Splitting of spectral lines in the presence of magnetic field
Which orbit of He+ ion has h/π as its angular momentum of the electron ?
First
Second
Third
Fourth
