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Grade 8 - Atoms and Trends

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  • The column in periodic table
    Group
  • How does the reactivity order of metals in the periodic table?
    From right to left and top to bottom
  • Subatomic that has negative charge
    Electron
  • The most stable group in periodic table
    Noble gases
  • Which element is more reactive between Oxygen and Neon?
    Oxygen
  • The smallest unit of matter
    Atom
  • The group that doesn't have reactivity as their properties
    Noble gases
  • The row in periodic table
    Period
  • Which element is more reactive between Sodium and Calcium?
    Sodium
  • The most reactive group in periodic table
    Alkali metals
  • Subatomic that has neutral charge
    Neutron
  • Subatomic that has positive charge
    Proton
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