Foxoyo
Hey..!!
Atomic Structure
Practice
MCQs
Quizzes
About
Leaderboard
Amazon Books
83
MCQs
0
Attempts
0 %
Accuracy
share
Filter by
Type here
Apply
The ratio of the mass of the proton to the mass of the electron is nearly
2000
1840
8140.
4801
The energy of hydrogen atom in its ground state is - 13.6 e
V. The energy of the level corresponding to the quantum number n = 5 is
- 0.54 eV
- 2.72 eV.
- 5.40 eV
- 0.85 eV
The maximum number of electrons with clockwise spin that can be accommodated in a �-subshell its
5
7
10.
14
The wavelength of the radio-waves having frequency 3 MHz would be
300 m
100 m
100 nM
300 nm.
The charge to mass ratio of ?-particles is approximately��. The charge to mass ratio of protons
six times
four times
Half
Twice
Neutrons were discovered by
J.J. Thomson
G.T. Seabery.
James Chadwick
Rutherford
Which of the following does not characterize X-rays
Have wavelength shorter than ultra-violet rays.
It causes ZnS to fluoresce
The radiation can ionise the gas
Deflected by electric and magnetic field
The number of subshells in the fifth energy level is
9
4
5.
11
The wavelength of a spectral line for electron transition in an atom is inversely proportional to
Number of electrons undergoing transition
The difference of energy between energy levels involved in the transition
None of the above is correct.
Velocity of electron
Which of the following metals is most likely to exhibit photoelectric effect
Platinum
Gold
Chromium
Caesium.
The first use of quantum theory to explain the structure of atom was made by
de Broglie.
Heisenberg
Planck
Bohr
The maximum number of electrons that can be accommodated in fifth energy level is
32
25
10
50
In chromium atom, in ground state, the number of occupied orbitals is
14
7
15
12
The number of orbitals in the fourth energy level is
16
4
9.
32
In a multi-electron atom the energy of the electron in a particular orbital is determined by
l only
n and l
n, l and m.
n only
An atom has 35 nucleons and has atomic number equal to 17. The number of electrons with n = 2, m = 0 in it is
3.
2
4
6
The ionization energy of hydrogen atom is 13.6 e
V. The third ionization energy of lithium would be
40.8 eV
122.4 eV.
27.2 eV
13.6 eV
The hydrogen atoms are excited to the stationary state designated by the principal quantum number, n = 3. The spectral lines emitted by hydrogen atoms, as explained by Bohrs theory will be
1
3
2
4.
According to Aufbau principle, the 19th electron in an atom goes into the
4s-orbital
3p-orbital.
4p-orbital
3d-orbital
How many electrons in calcium have l = 0
10
6
8
12.
1
2
3
5
Next
take a quick Quiz
Practice mcqs on Atomic Structure
Let's start
pick difficulty level
all
1
2
3
4
5
83
Mcqs
0
attempts
1
followers
Related Topics
Atomic Structure
Atomic and Nuclear Physics
Data Structure
Data Structure Dynamic Programming
Data Structure Abstract Data Types
Data Structure Recursion
Data Structure Binary Trees
Data Structure Arrays Types
Data Structure Heap
Data Structure Searching
Suggested Books