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Atomic Structure

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  • Which particle orbits the nucleus?
    Electron
    Neutron
    Down Quark
    Proton
  • How many neutrons are in Carbon-14?
    14
    6
    7
    8
  • Which subatomic particle has no charge?
    Neutron
    Proton
    Electron
    Up Quark
  • Which statement is true about quarks?
    Protons and neutrons are made of quarks
    Quarks orbit the nucleus
    Quarks have no charge
    Quarks are found in electrons
  • What determines the identity of an element?
    Number of electrons
     Number of neutrons
    Number of quarks
    Number of protons
  • What is the mass number?
    Total number of protons and neutrons
    Number of protons
    Number of electrons
    Number of neutrons
  • What is the combination of quarks in a neutron?
    uud
    uuu
    udd
    ddd
  • What is the combination of quarks in a proton?
    udd
    ddd
    uud
    uuu
  • Which isotope of carbon is radioactive?
    Carbon-12
     Carbon-13
    Carbon-11
    Carbon-14
  • Which quark has a +2/3 charge?
    Proton
    Down
    Up
    Electron
  • How many quarks make up a proton?
    1
    3
    4
    2
  • What is an isotope?
    An atom with more electrons than protons
    Number of electrons
    A particle inside the nucleus
    Atoms of the same element with different neutrons
  • What is the atomic number?
    Total number of protons and neutrons
    Number of protons
    Number of electrons
    Number of neutrons
  • Which quark has a –1/3 charge?
    Proton
    Electron
    Down
    Up
  • Which particle is neutral in charge?
    Up quark
    Neutron
    Proton
    Electron
  • Which subatomic particle has a positive charge?
    Neutron
    Electron
    Proton
    Quark
  • Which particle determines the atom’s chemical behavior?
    Proton
    Neutron
    Down quark
    Electron
  • A proton is made of which combination of quarks?
    ddd
    udd
    uuu
    uud
  • How do isotopes of the same element differ?
    Number of quarks
    Number of protons
    Number of electrons
    Number of neutrons
  • What happens if an atom gains a neutron?
    It becomes an isotope of the same element
    It becomes a different element
    It loses electrons
    It loses protons
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