The maximum number of electrons in a subshell having the same value of spin quantum number is given by
l (l + 1)
√l(l + 1)
l + 2
2l + 1
In an atom with 2K, 8L and 13M electrons,what will be the total number of 'p' electrons ?
12
6
4
2
126 C and 146 C differ from each other in the number of
Nucleons
Mesons
Electrons
Protons
The wave length of a spectral line for an electronic transition is inversely related to
The nuclear charge of the atom
The difference in the energy of the energy levels involved in the transition
The number of electrons undergoing the transition
The velocity of the electron undergoing the transition
As the number of nodes increases, the energy of the orbital
Decreases
Increases
Is halved
Remains the same
In the photo electron emission, the energy of the emitted electron is
Smaller than that of the incident photon
Greater than that of the incident photon
Same as that of the incident photon
Proportional to the intensity of the incident photon
The ground state of an atom means that all the electrons are
Having the same energy
In the lowest possible energy state
In the first orbit
In the nucleus
An element 'm' has an atomic mass 27 and atomic number 13. Its ion is represented by
M3+
M2+
M+
M-
Who proposed the uncertainty principle ?
De Broglie
Davisson
Max Planck
Heisenberg
The ratio of the radii of the 2nd and 3rd Bohr orbits in hydrogen atom is
3:8
3:4
9:16
4:9
