1. Atoms Vocab

2. Matter
Anything that has mass and takes up space
Example:

3. Physical Properties
Characteristic of a material that can be observed or measured without changing the identity of the material
Example: color, shape, mass, density, volume

4. Chemical Properties
The types of chemical changes a substance is able to experience
Examples: flammability, rusting

5. Atom The tiny particles that make up the 3 states of matter
They are the SMALLEST unit of matter

6. Nucleus The center of the atom Contains the protons and neutrons
Most of the atoms mass is located in the nucleus

7. Proton Have a positive (+) charge and are located inside the nucleus

8. Neutron
Have NO charge and are located inside the nucleus
NEUTRON

9. Electron
Have a negative (-) charge and are located outside of the nucleus
Electron

10. Electrical Charge
Atoms can be either positive, negative or neutral + -

11. Atom with a neutral charge
Atoms have no overall electrical charge
They are said to be neutral
The positive charges of the protons balance out the negative charges of the electrons

12. Atom with a Positive Charge-
An atom with a positive charge will have more protons than electrons
7 + 7N - - - - -
This atom has 7 protons, 7 neutrons and 6 electrons

13. Atom with a Negative Charge-
An atom with a negative charge will have more electrons than protons
5 + 5N - - - - -
This atom has 5 protons, 5 neutrons and 6 electrons