Login
Login
Sign up
Home
TOP
Send feedback
See more
Terms and Conditions
Privacy Policy
Subjects
Science CBSE Homework Assignments
Class 9
Structure of the atom
Subatomic particles
1.
Discovery of subatomic particles
Task:
3
m.
1
.
Whose atomic theory was made meaningless by the discovery of two fundamental particles inside the atom?
Eugen Goldstein
J. J. Thomson
Dalton
James Chadwick
2
.
Identify the subatomic particle of the from the following.
Positron
Electron
Positive electron
Alpha particle
3
.
Electron has the charge of
\(0\)
\(+2\)
\(+1\)
\(-1\)
Login
or
Fast registration
Previous topic
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!