This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chapter 18 Atomic and Nuclear Physics-2
1.
Who discovered that the positive charge in an atom was concentrated in a small region?
a) Rutherford
b) Pascal
c) Mendel
d) Democritus
2.
Which of the following is present in nucleus of an atom?
a) (b) Protons
b) (a) Both b and d
c) (d) Neutrons
d) (c) Electrons
3.
What are the protons and neutrons collectively called?
a) Positrons
b) Neurons
c) Nephrons
d) Nucleons
4.
Which of the following are collectively called nucleons?
a) Protons & Neutrons
b) Electrons, Protons & Neutrons
c) Electrons & Neutrons
d) Protons & Electrons
5.
Which of the following is the simplest atom?
a) Nitrogen atom
b) Hydrogen atom
c) Oxygen atom
d) Carbon atom
6.
What is the total number of protons present in the nucleus of an atom called?
a) Neutron number
b) Mass number
c) Atomic mass number
d) Atomic number
7.
Nucleons are the particles?
a) Protons and neutrons
b) Electrons and neutrons
c) Protons and electrons
d) Protons, electrons and neutrons
8.
What is the symbol for atomic number?
a) A
b) Z
c) An
d) N
9.
What is the total number of protons present in the nucleus of an atom called?
a) Atomic mass number
b) Neutron number
c) Proton number
d) Mass number
10.
How many protons hydrogen atom have?
a) 2
b) 0
c) 1
d) 3
This is more feedback!
This is the feedback!
