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 State Board
Class 7
Atomic structure
Textbook questions
1.
Choose the appropriate answer I
Exercise condition:
3
m.
1.
The basic unit of matter is __________.
Element
Electron
Molecule
Atom
2.
The subatomic particle revolve around the nucleus is __________.
Electron
Proton
Neutron
Atom
3.
__________ is positively charged.
Molecule
Neutron
Proton
Electron
Login
or
Fast registration
Previous topic
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!