Chemistry One-Liners for various competitive examinations

Please follow and like us:
Pin Share



Chemistry One-Liners for various competitive examinations


Thank You for landing the Chemistry section page.


Here are some important Chemistry one-liners for students competing for various exams


Watch some of the important Chemistry Bits below.

1- Bohr’s theory is based on Planck’s quantum theory of radiation.

2-Planck successfully explained the phenomenon of blackbody radiation using his Quantum theory of radiation.

3- Sommerfeld proposed elliptical orbit of an electron. He also proposed angular momentum of an electron.

4- Light is an electromagnetic wave. Quantum theory of radiation was proposed by Max Planck.

5-Protons and neutrons are present in the nucleus. Hence they are called nucleons.

6- J.J Thompson proposed watermelon model of an atom.


J.J Thompson
J.J Thompson

7- The main characteristic of Bohr model of an atom is that the energy of the electron remains unchanged as long as the electrons revolve around orbits.

8-  The azimuthal quantum number was proposed by Bohr. The principal quantum number gives the size and energy of the stationary orbit.

9-  A Spin quantum number was suggested by Uhlenbeck and Goudsmit. This spin quantum number gives the spin of an electron.

10- According to Aufbau principle, the electron occupies the orbital having the lowest energy.

11- Hund’s rule states that electron pairing takes place only after all the available degenerate orbitals are occupied by one electron each.

12- Pauli’s exclusion principle explains that no two electrons in an atom can have the same set of four quantum numbers.

13- Pauli’s exclusion principle is based on spectral evidence.

14-  Magnetic quantum number was proposed by Lande.

15- Magnetic quantum number determines the orientations of orbitals.

16- Rutherford proposed a planetary model of an atom.

17- J.J Thompson discovered electron.

18- Rutherford discovered proton.

19- Chadwick discovered neutron.

20- Chief Physical quantities of an atom are atomic size, ionization energy and electron affinity.

21- Ionization energy depends on nuclear charge, size of the atom, Charge on the ion and electronic configuration.

22- Subatomic particles– Electrons, protons and neutrons.

Watch more Chemistry here


Watch Current Affairs section for here 

Please follow and like us:
Pin Share
(Visited 69 times, 1 visits today)

Leave a Comment