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Atoms Protons Neutrons

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  • in a neutral atom, the number of protons equals the number of what?
    electrons
  • produces radioactive waste
    fission
  • Atom A has 4P + 5N. Atom B has 5P+5N. Are they isotopes? Explain.
    No- no the same element
  • Takes place inside the sun.
    fusion
  • measurable event, characteristic or behavior commonly thought to reflect a concept
    indicator
  • An atom has 8 protons, 9 neutrons, and 10 electrons. What is its mass?
    17
  • made of high energy waves
    gamma
  • summary based on evidence or facts
    conclusion
  • special method or way of doing something
    technique
  • the charge of the neutron
    zero
  • What parts of the atom are found in the nucleus?
    Protons + Neutrons
  • hypothetical explanation of a natural phenomenon
    theory
  • identify the atom that has 17P and 18N
    chlorine
  • The part of the atom that has a positive charge
    proton
  • the part of the atom that has a negative charge
    electron
  • Mg-26 is number 12 on the periodic table. How many neutrons does it have?
    14
  • What is the name of the process in which two small nuclei are joined to produce one larger nucleus and lots of enregy?
    fusion
  • to take a stand in support of something
    defend
  • Releases more energy than the other
    fusion
  • When drawing a Bohr model, this is the number of electrons on the first ring.
    2
  • What type of energy is released when an unstable nucleus undergoes fission?
    Gamma
  • Must be stopped by thick concrete or lead
    gamma
  • the part of the atom that orbits around the nucleus
    electron
  • created when a neutron breaks into a proton and an electron:proton stays in nucleus
    beta
  • Made up of 2 protons and 2 neutrons
    alpha
  • logically correct
    valid
  • Most of the world's electricity is made using fossil fuels as an energy source. In what way is nuclear fission a better alternative to fossil fuels?
    Less pollution,
  • logically connected; making sense
    coherent
  • A Carbon, atom #6 on the periodic table has a mass of 13. How many neutrons?
    7
  • produces a larger atomic number
    fusion
  • this part of the atom is the smallest; its mass # is 0.
    electron
  • produces a nucleus with a smaller mass number
    alpha
  • rules by which something is judged
    criteria
  • can be stopped by a sheet of paper
    alpha
  • make clear the differences between two or more concepts or items
    distinguish
  • relative speed of progress or change
    rate
  • In Ne-21, what does the 21 mean?
    mass#/ P+N
  • the one part of the atom that is always the same as the atomic number
    proton
  • the parts of the atom that make up the mass number
    protons + neutrons
  • What is the same in an isotope?
    proton
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