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Atomic Structure, Masses and Element & Compounds ...

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  • These subatomic particles live in the rings of an atom.
    Electrons
  •  15
  • If the number of these particles change, then the identity of the entire atom changes.
    Protons
  •  15
  • Chemical symbol for Iron
    Fe
  •  15
  • Chemical name for Br
    Bromine
  •  15
  • Define atom
    Smallest particle of an element; Building block of life
  •  15
  • Electron shell #3 can hold how many electrons?
    8 electrons
  •  15
  • Negatively charged subatomic particle
    Electron
  •  15
  • Bohr model of Oxygen
    P=8 E=8 N=8
  •  15
  • Bohr model of Lithium
    P=3 E=3 N=4
  •  15
  • The mass of this subatomic particle is nearly zero
    Electron
  •  15
  • Isotopes of atoms have a different amount of ________.
    Neutrons
  •  15
  • A salad is what type of mixture?
    Heterogeneous mixture
  •  15
  • Mud is a ______ mixture.
    Homogeneous mixture
  •  15
  • Define compound
    Substance composed of 2 or more different atoms that are bonded
  •  15
  • Element, compound or mixture? Helium
    Element
  •  15
  • Element, compound or mixture? CO2
    Compound
  •  15