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Chem Review

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  • How many atoms of Hydrogen are there in 2C2H4O2 ?
    8
  • What is the formula for the compound shown?
    C02
  • Atomic Number of Boron
    5
  • What happens to the atomic number as you move across the periodic table?
    It goes up by 1 each time
  • Where are the Noble Gases found?
    Group 18
  • How can you tell a chemical reaction happened?
    Gas, heat, temperature, new substance
  • What you get from 2 Hydrogen and 1 Oxygen atom bonded
    H2O - Water
  • Smallest part of an element
    atom
  • Something made of two or more elements bonded together
    Compound
  • The period that an element is in also tells you what?
    How many rings of electrons it has
  • How many compounds shown in the picture?
    0
  • How do you find the number of neutrons?
    Mass # - Atomic #
  • Which atom is this?
    Silicon
  • Why can you not trust an atom?
    It makes up everything! HA!
  • The part of the atom with the negative charge
    electron
  • Where are most of the non-metals found on the periodic table?
    Right side
  • Something made of two or more atoms bonded together
    molecule
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