The essential constituent of matter is
Electron
Proton
Neutron
None
The electrons identified by quantum number n and 1
(i)n=4,l=1 (ii) n=4,l=0 (iii)n=3,l=2(iv)n=3,l=1 can be placed in the order of
iv<ii<iii<i
iii<iv<i<ii
i<ii<iii<iv
iv<iii<ii<i
The maximum energy is possessed by an electron, when it is present
in nucleus
In ground energy state
in first excited state
at infinite distance from the nucleus.
Which among the following species have the same number of electrons in its outermost as well as penultimate shall
Mg2+
O2-
F-
Ca2+
Bohr’s model is
Successful in calculating energy of the helium atoms
Successful in calculating energy of hydrogen like atoms
Successful in calculating energy of lithium like atoms
None of the above
Splitting of spectral lines under the influence of magnetic field is
Zeemen effect
Stack effect
Photo electric effect
Raman effect
The total number of atomic orbitals in fourth energy level of an atom is
4
8
16
32
Maximum number electrons in a subshell of an atom is determined by the following
4l +2
2n2
4l-1
2l + 1
When the azimuthal quantum number l=1, shape of the orbital will be
Spherical
Dum-bell
Double dumb-bell
Circular
The number of nodal planes that 5d orbital has
Zero
5
Two
Three
