Login
Home
TOP
Send feedback
Login
Subjects
Chemistry CBSE Live product
Class 9
Atoms and molecules
Fundamental chemical concepts: Atomic mass, molecules, and ions
1.
Atomic number
Question:
3
m.
Find the analogy
:
Answer variants:
\(12\)
5
Boron
Silicon
1
.
Ca
:
Calcium
::
\(B\)
:
2
.
Silicon
:
14
::
Boron
:
Login
or
Fast registration
Previous theory
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!