EASY
9th CBSE
IMPORTANT
Earn 100

Name the negatively charged particle present in the atoms of all the elements.

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 6

Define electron.

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 7
What are the actual values of charge and mass of the electron ?
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 8

Name the scientist who discovered electron.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 9

What are canal rays?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 10
Name the positively charged particle present in the atoms of all the elements.
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 11

Define proton.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 12
State the mass and charge of proton.
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 13

Name the scientist who discovered the existence of protons in atoms.