EASY
9th CBSE
IMPORTANT
Earn 100

What are canal rays?

Important Questions on Structure of the Atom

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.

HARD
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 14

In Rutherford's scattering experiment, some but very few alpha particles are deflected back. What does it signify?

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 15

In Rutherford's scattering experiment, most of the alpha particles pass through the gold foil without undergoing any deflection. What does it signify?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 16

Which observation of the scattering experiment proves that most of the space in the atom is empty?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 17
Which sub-atomic particle was not present in Thomson's model of the atom?