The total number of atomic orbitals in fourth energy level of an atom is
4
8
16
32
Which among the following species have the same number of electrons in its outermost as well as penultimate shall
Mg2+
O2-
F-
Ca2+
Bohr atomic model can explain
The spectrum of hydrogen atom only
Spectrum of atom or ion containing one electron only
The spectrum of hydrogen molecule
The solar spectrum
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 number of nodal planes that 5d orbital has
Zero
5
Two
Three
The energy of second Bohr orbit of the hydrogen atom is – 328 k J/ mol ; hence the energy of fourth Bohr orbit would be
41 KJ/mol
-1312 KJ/mol
-164 KJ/mol
-82 LK/mol
Splitting of spectral lines under the influence of magnetic field is
Zeemen effect
Stack effect
Photo electric effect
Raman effect
Magnetic quantum number specifies
Orbital size
Orbital shape
Orbital orientation
Nuclear stability
Angular momentum of an electron in the nth orbit of hydrogen atom is given by
nh/2π
nh
2π/nh
π/2nh
The essential constituent of matter is
Electron
Proton
Neutron
None
