EASY
9th CBSE
IMPORTANT
Earn 100

What is the mass of the proton in a gram?

A: 1.673×10-24B: 6.673×10-24C: 3.673×10-24

(Enter your correct answer as A, B or C)

75% studentsanswered this correctly

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT
Name the scientist who discovered neutron.
EASY
9th CBSE
IMPORTANT

State the mass of neutron in gram.

A=1.676×10-24 g.B=1.676×10-23 g.C=1.676×10-22 g.

Enter your correct answer as A, B or C.

MEDIUM
9th CBSE
IMPORTANT
Other than protons and neutrons, which other particles are present in the nucleus?
EASY
9th CBSE
IMPORTANT
What is the electrical charge on the nucleus of an atom? (Negative/ Positive/ Neutral)
EASY
9th CBSE
IMPORTANT
What is meant by the atomic number of an element?
EASY
9th CBSE
IMPORTANT
What is meant by the mass number of an element?
EASY
9th CBSE
IMPORTANT
What are nucleons?
EASY
9th CBSE
IMPORTANT
Define valence electrons and valency.