EASY
9th CBSE
IMPORTANT
Earn 100

Define the term: Proton.

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT

Define the term: neutron 

EASY
9th CBSE
IMPORTANT

Define the term: nucleon.

HARD
9th CBSE
IMPORTANT

How was neutron discovered?

HARD
9th CBSE
IMPORTANT

Name the experiment which established the presence of atomic nucleus. What features of the nucleus were deduced from this experiment?

MEDIUM
9th CBSE
IMPORTANT
The complete symbol of an atom X is written as X511. What does the number 5 indicate? (Mass number/ Atomic number)
MEDIUM
9th CBSE
IMPORTANT
The complete symbol of an atom X is written as X511. What is the number of protons in X11/ 5
MEDIUM
9th CBSE
IMPORTANT
The complete symbol of an atom X is written as X511. What is the number of neutrons in X6 / 7 /8
MEDIUM
9th CBSE
IMPORTANT
The complete symbol of an atom X is written as X511. What is the number of electrons in X?