Terms & Definitions - Module 11
Match the following definitions (or descriptions) to the terms listed below them.

  1. A standard unit of atmoic mass. One-twelth the mass of carbon.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  2. Electrically neutral particle in an atomic nucleus.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  3. Smallest particle of an element that has the chemical properties of the element.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  4. Number of protons in an atom's nucleus.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  5. Positively charged particle in an atomic nucleus.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  6. Two atoms that contain the same number of protons, but different numbers of neutrons.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  7. Negatively charged particle that is present outside the nucleus of an atom.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  8. A chart that lists elements in order of atomic number and electron shells.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  9. The core of an atom, containing protons and neutrons.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  10. A material containing atoms of different elements, where these atoms are chemically bonded to each other.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  11. Small particles in a gas are bombarded by the gas molecules. The bombardment causes the particles to move randomly.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  12. The smallest particle of a compound where the particle has the chemical properties of the compound.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  13. Theory of the microworld, where both light and matter have wave and particle properties.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  14. A process where atomic bonds are broken and other bonds are formed, changing one set of molecules into another set of molecules.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  15. A material containing atoms of different elements, where these atoms are NOT chemically bonded to each other.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  16. A form of matter that is complementary to regular matter, and consists of anti-particles.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter

  17. About 90 percent of the matter of the universe is unseen and undetected apart from apparent gravitational influence on stars in galaxies.
    1. Atom
    2. Brownian motion
    3. Atomic nucleus
    4. Electron
    5. Proton
    6. Neutron
    7. Atomic number
    8. Atomic mass unit
    9. Isotopes
    10. Periodic table
    11. Compound
    12. Molecule
    13. Chemical reaction
    14. Mixture
    15. Quantum mechanics
    16. Antimatter
    17. Dark matter


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