Atoms and Molecules


1. What did Democritus say about atoms?

2. What is Ernest Rutherford’s contribution to our understanding of the atom? What experiment did he conduct to reach his conclusions?

3. Make a timeline with regard to  the most widely recognised models of the atom proposed by  scientists till now.

4. Who discovered protons, electrons and neutrons?

5. Compare protons, neutrons and electrons in terms of position,  mass and charge.

6. Why does an atom have no overall charge even though it is made up of charged particles?

7. What are molecules?

8. How are molecules formed?

9. Name some elements whose molecules are diatomic.

10. Are all compounds made up of molecules?

11. What is the difference between an atom and a molecule?

This entry was posted in scientia 8 and tagged , , , , , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s