What is Matter?
Anything that has mass and takes up space.
Carbon 14 Atom
What defines a Carbon atom?
Number of protons atomic number
Isotope atoms of same element with different atomic masses
Atomic Mass = # of protons + # of neutrons
Elements contain only one type of atom
Proton + Electron
- Neutron (0)
Electrons are found in the "Electron Cloud"
Isotopes are atoms of the same element that have different numbers of neutrons.
How do atoms combine to form molecules?
Atoms lose or gain electrons to become charged Ion
Positive ions are attracted to negative ions to become molecules
Mixture vs. Solution
Matter
Density = Mass/Volume
The 4 states of matterare
Solid
Liquid
Gas
plasma
