EASY
9th CBSE
IMPORTANT
Earn 100

Match proton, neutron, electron and hydrogen with the correct descriptions (a) to (d)
(a) It is a uncharged nucleon and was discovered by Chadwick
(b) It is distributed around the nucleus of an atom
(c) It is formed when a hydrogen atom loses its electron
(d) It does not contain any neutron in its nucleus

Important Questions on Structure of Atom

EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Questions on Higher Order Thinking Skills (HOTS)>Q 11
Write the correct forms of the following statement.
Electron was discovered by JJ Thomson in the form of anode rays.

 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Questions on Higher Order Thinking Skills (HOTS)>Q 11
Write the correct forms of the following statement.
Rutherford modified the nuclear model proposed by Bohr. 

 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Questions on Higher Order Thinking Skills (HOTS)>Q 11
Write the correct form of the following statement.
The electron is heavier than the neutron.
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Questions on Higher Order Thinking Skills (HOTS)>Q 11
Write the correct forms of the following statements.
Cl-35 and Cl-37 are the two isomers of chlorine.
 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 1
Electron was discovered as cathode rays by
 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 2
The main subatomic particles of nucleus are
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 3
The decreasing order of the masses of proton, neutron and electron is:
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 4
There are 6 electrons in the outermost L-shell of an atom. Therefore, its atomic number is