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Quiz by Heather Reeve

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20 questions
Show answers
  • Q1
    An ______ is the smallest particle of any element.
    electron cloud
    atom
    orbit
    nucleus
    30s
  • Q2
    At the center of an atom is a tiny, dense ________ containing protons and neutrons.
    nucleus
    orbit
    atom
    electron cloud
    30s
  • Q3
    Surrounding the nucleus is a cloud-like region of moving __________.
    orbits
    atoms
    nuclei
    electrons
    30s
  • Q4
    Most of an atom's volume (space) is the space in which the _________ move.
    atoms
    nuclei
    electrons
    orbits
    30s
  • Q5
    ________ are neutral, meaning they have no charge.
    electrons
    protons
    nuclei
    neutrons
    30s
  • Q6
    In diagrams of atoms, ________ are shown by a plus sign (+). This represents a charge of +1.
    protons
    nuclei
    electrons
    neutrons
    30s
  • Q7
    The symbol e- represents _______, which have a charge of -1.
    electrons
    protons
    nuclei
    neutrons
    30s
  • Q8
    In a neutral atom, the number of ________ equals the number of electrons.
    protons
    nuclei
    electrons
    neutrons
    30s
  • Q9
    The number of ________ in the nucleus of an atom is the element’s atomic number.
    neutrons
    protons
    electrons
    nuclei
    30s
  • Q10
    _______ balance protons charge for charge.
    protons
    electrons
    neutrons
    nuclei
    30s
  • Q11
    it takes almost 1,840 __________ to equal the mass of one proton.
    neutrons
    nuclei
    electrons
    protons
    30s
  • Q12
    An element’s atomic number is equal to _____.
    the number of neutrons in its nucleus.
    the number of protons and electrons in its nucleus.
    the number of protons in its nucleus.
    the number of protons and neutrons in its nucleus.
    30s
  • Q13
    You have a sample of fluorine to analyze. The sample is made up of neutral atoms. Using the information in the picture, determine the number of PROTONS found in each atom of your sample.
    Question Image
    12
    3
    6
    9
    30s
  • Q14
    You have a sample of fluorine to analyze. The sample is made up of neutral atoms. Using the information in the picture, determine the number of ELECTRONS found in each atom of your sample.
    Question Image
    6
    12
    3
    9
    30s
  • Q15
    You have a sample of fluorine to analyze. The sample is made up of neutral atoms. Using the information in the picture, determine the number of NEUTRONS found in each atom of your sample.
    Question Image
    8
    10
    7
    9
    30s

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