Matter and Its Changes
Chapter 2
What is Matter?
What is Matter?
Anything that has mass and takes up space.
Draw an atom with 6 protons, 8 neutrons, and 6 electrons.
Draw an atom with 6 protons, 8 neutrons, and 6 electrons.
Carbon 14 Atom
What defines a Carbon 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
How do atoms combine to form molecules?
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
What are the 4 states of matter?
What are the 4 states of matter?
Solid
Liquid
Gas
plasma
