EASY
9th Manipur Board
IMPORTANT
Earn 100

Where is the mass of an atom concentrated? 

Important Questions on Structure of the Atom

EASY
9th Manipur Board
IMPORTANT

What are the particles present in the nucleus of an atom? 

EASY
9th Manipur Board
IMPORTANT

Where are the electrons in an atom found? 

EASY
9th Manipur Board
IMPORTANT

Which atom contains only two fundamental particles? 

MEDIUM
9th Manipur Board
IMPORTANT
What led Rutherford to discover the existence of the nucleus? 
EASY
9th Manipur Board
IMPORTANT

Define atomic number.

EASY
9th Manipur Board
IMPORTANT
Define mass number.
MEDIUM
9th Manipur Board
IMPORTANT
What are isotopes? Give one example. 
MEDIUM
9th Manipur Board
IMPORTANT
What are cathode rays and how do they differ from positive rays?