Terms & Definitions - Module 33
Match the following definitions (or descriptions) to the terms listed below them.
The correct answer is indicated by the "==========".
  1. Atoms which contain the same number of protons, but different numbers of neutrons.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes ==========
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  2. A proton or a neutron. A particle present in an atomic nucleus.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon ==========
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  3. Particles that join together to make protons and neutrons.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks ==========
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  4. The number of protons in an atomic nucleus.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number ==========
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  5. Electromagnetic radiation with high frequency. Emitted by nuclei of some radioactive atoms.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray ==========
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  6. An electron or positron. Emitted by nuclei of some radioactive atoms.
    1. X-ray
    2. Alpha particle
    3. Beta particle ==========
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  7. The total number of neutrons and protons in an atomic nucleus.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number ==========
    10. Half-life
    11. Transmutation

    8. The nucleus of a helium atom with 2 protons, 2 neutrons. Ejected by some radioactive nucleii.
    1. X-ray
    2. Alpha particle ==========
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

  9. The atomic nucleus of an atom (of a given element) gains or loses protons and by doing this, it changes into a nucleus of a different element.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation ==========

  10. The amount of time needed for half the atoms of a radioactive element to decay into atoms of other elements.
    1. X-ray
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life ==========
    11. Transmutation

  11. Electrons in an atom drop from higher energy levels down to the lowest energy level. The atom emits electromagnetic radiation with a frequency higher than that of ultraviolet radiation.
    1. X-ray ==========
    2. Alpha particle
    3. Beta particle
    4. Gamma ray
    5. Nucleon
    6. Quarks
    7. Isotopes
    8. Atomic number
    9. Atomic mass number
    10. Half-life
    11. Transmutation

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