Class 11 Chemistry: Structure of Atom

Question 1

The atomic number of an element equals the number of:

Accepted Answer

Protons in the nucleus

Question 2

Which scientist proposed the nuclear model of the atom?

Accepted Answer

Ernest Rutherford

Question 3

The maximum number of electrons in the third shell (n=3) is:

Accepted Answer

18

Question 4

Isotopes of an element have the same:

Accepted Answer

Atomic number