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Atomic Structure- G9 ONLY

Quiz by Christina BOYLE

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12 questions
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  • Q1
    smallest unit of matter
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    atom
    30s
  • Q2
    the center of the atom that contains neutrons and protons; where most of the mass of an atom is located
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    nucleus
    30s
  • Q3
    the outer portion of an atom that contains electrons; where most of the volume of an atom is located
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    electron cloud
    30s
  • Q4
    neutrally charged subatomic particles with a mass of 1 amu; located in the nucleus
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    neutron
    30s
  • Q5
    positively charged subatomic particles with a mass of 1 amu; located in the nucleus
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    proton
    30s
  • Q6
    the average mass of all atoms of an element
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    atomic mass
    30s
  • Q7
    the rounded mass of an atom; protons + neutrons
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    mass number
    30s
  • Q8
    the number of protons in an atom; the number that identifies an element
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    atomic number
    30s
  • Q9
    describes the ratio of the atoms of a particular substance (water = H2O)
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    chemical formula
    30s
  • Q10
    A subatomic particle that has a negative charge
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    Electron
    30s
  • Q11
    the chart scientists use to organize and classify all the known elements
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    Periodic Table of Elements
    30s
  • Q12
    One or two letters that represent element.
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    element symbol
    30s

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