Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 9
Structure of the atom
Discovery and structural models of atomic particles
7.
Atoms and subatomic particles
Exercise condition:
3
m.
1
.
The smaller particles found in the atom is called
beta particles
subatomic particles
alpha particles
atomic particles
.
2
.
Atom
Valency
Mixture
Molecule
is defined as the combining capacity of an element.
3
.
The atomic number of an atom is
number of protons and electrons
number of electrons and neutrons
number of mesons and neutrons
number of neutrons and protons
.
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!