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Chapter 18 (What are the phases of matter (Phases of matter: (Solid:…

- - - - Protons: positive charged particle, has mass equal to the neutron, located in the nucleus
        
        number of protons (Z-number, atomic number) defines what kind of matter it is (Hydrogen,1, oxygen, 8, etc)
      - Neutrons: Neutrally charged particles has mass equal to the proton, located in the nucleus
        
        Atomic Mass = # of Neutrons + # of protons (basic particles)
        
        1 gram an element = 6.02E23 neutrons + protons. Also known as Avogadro's number and a mole.
        1 mol = 6.02E23 basic particles
        A way to shift from the micro to the macro
      - Electrons, negatively charged particles, orbiting the nucleus and have no mass
  - - - Solid to liquid = melting
    - - liquid to gas = evaporating
- - - - Absolute zero = no energy