Atoms

1.What are Atoms?

 A.Tiny particles  that make up all matter.

B.Tiny particles that can only been seen with a microscope.

C.Tiny particles that look like gnats

D.Particles that are so large they cannot be seen

2. What does the word Atomos mean in ancient greece

Its something that cannot be divided anymore.

3.

4. What is quantum mechanics

The study of atoms and tiny particles.

5.If you wanted to find the chemical element of an atom ,you would need to

A.Know how many electrons it has.

B.know how many protons it has .

C.Know its melting temperature.

D.See it with a microscope.

6.

Part 2                                                          

Across

1. Positively charged parts of an atom

nucleus

6. Negatively charged parts of an atom

electron’s

7.Atoms are building blocks for …....

molecules

molecules

8.The number of electrons in atoms are determine  an element's _chemcail_ properties

9.Neutrally charged parts of an atom

neutrons

10. A chart which lists all of the known elements

Periodic table

Down

2.protons and neutrons are found in this part of an atom.

nucleus

3.type of force that holds the nucleus of an atom together.

Electro magnet.

4.area of science that studies tiny particles like atoms

quantum mechanics.

5.The word atom comes from this language.

Greece