Physical Science Grade: 8

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  1. What are the main particles an atom is made of?
    Protons, Neutrons, and Electrons.
  2. What is the mass of a electron?
    0.0000000000000000000000000000000091 grams.
  3. What is the mass of  a proton?
    0.000000000000000000000000000000000000017 grams.
  4. What is the mass of a neutron?
    It is (0.14%) heavier than the proton.
  5. What is the particle called when a proton is broken down into a smaller particle?
    It is called a(n) antineutrino.
  6. What is a model?
    It is a schematic description of a system that accounts for its known properties.
  7. What is a Bohr Model?
    It is a type of model that describes on what a(n) atom may look like, such as if I had a Bohr Model of helium, it would have 2 protons, 2 neutrons, and 2 electrons, He.
  8. What is the nucleus of an atom?
    It is the center of an atom, containing the protons and neutrons.
  9. What is the speculative correct model for an atom named?
    It is called the quantum-mechanical-model.
  10. What is a(n) atomic number?
    The number of protons in an atom.
  11. What is the mass number on the periodic table?
    It is the sum of the numbers of neutrons and protons in the nucleus of an atom.
  12. What are Isotopes?
    Atoms with the same number of protons, but with different numbers of neutrons.
  13. What is a(n) element?
    A collection of atoms that all have the same number of protons.
  14. What is the Periodic Table of Elements?
    It is a chart of where all the different element around the world are stored, it includes the atomic number, and the atomic mass for each element recorded on it.
  15. What are Bohr orbits?
    It is the orbit in which the electrons pass around the atom.
  16. What are Yukawa called?
    Pions.
  17. What is a radioactive isotope?
    An atom with a nucleus that is not stable.
  18. What is half-life.
    The time it takes for half of the original sample of a radioactive isotope to decay.
  19. How do you determine what kind of atom you have?
    You look at its atomic number.
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317919
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Physical Science Grade: 8
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Exploring Creation with Physical Science, Module: 13
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