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Structure of Matter

  •  English    27     Public
    elements, atoms, molecules, compounds, substances
  •   Study   Slideshow
  • If an element has 20 protons and an atomic mass of 40, how many neutrons does it have?
    20
  •  20
  • How is the Periodic Table arranged?
    by atomic number
  •  25
  • What is the charge of an atom that has an equal number of protons and electrons?
    neutral
  •  25
  • What is the current model of the atom that states electrons are in a cloud?
    electron cloud model
  •  10
  • What is the simplest unit of a compound?
    molecule
  •  25
  • How many electrons can the first energy level hold?
    2
  •  5
  • Anything that has mass and takes up space
    matter
  •  10
  • What is the smallest part of an element, made of electrons, protons and neutrons?
    atom
  •  15
  • Where is most of the mass of an atom?
    nucleus
  •  10
  • What is the atomic number the same as?
    protons
  •  20
  • What charge do neutrons have?
    neutral or no charge
  •  5
  • What charge do protons have?
    positive
  •  5
  • When molecules or atoms arrange themselves in ordered patterns create this.
    crystals
  •  25
  • This is what the subscript tells you in a chemical formula.
    the number of atoms of an element
  •  15
  • Two or more different atoms bonded together
    compound
  •  20
  • formed when 2 or more atoms join together chemically
    molecule
  •  15