EASY
9th Manipur Board
IMPORTANT
Earn 100

What atom does not contain neutron? 

Important Questions on Structure of the Atom

HARD
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 3
Describe the Rutherford's model of an atom. What are its limitations? 
HARD
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 4
Describe Bohr's model of the atom. 
MEDIUM
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 5
Explain with examples: Atomic number.
MEDIUM
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 5
Explain with examples: Mass number. 
MEDIUM
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 5

Explain with examples: Isotopes. Give any two uses of isotopes. 

MEDIUM
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 5

Explain with examples: Isobars.

HARD
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 6

The mass number of an element is 40. It contains 19 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element? 

EASY
9th Manipur Board
IMPORTANT
Science for Class 9>Chapter 5 - Structure of the Atom>EXERCISES>Q 7
Write the electronic configuration of the potassium atom: Z=19.