set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?

a) 4

b) 6

c) 2

d) 8

Question : 2

Which of the following is not a part of an atom?

a) Proton

b) Neutron

c) Electron

d) Photon

Question : 3

The chemical symbol for barium is

a) Ba

b) Be

c) B

d) Bi

Question : 4

The correct symbol for silver is

a) Si

b) Ar

c) Ag

d) Al

Question : 5

Constituents of atomic nucleus are

a) Electron and neutron

b) Proton and neutron

c) Electron and proton

d) Proton, neutron and electron

Question : 6

An a-particle consists of which of the following?

a) 2 protons and 4 neutrons

b) 1 proton and 1 electron

c) 2 protons and 2 neutrons

d) 1 proton and 1 neutron