Study

Counting Elements and Atoms

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  • How many total atoms are present in the compound Mg(OH)2?
    5
  • Atoms are the __________ part of a chemical element.
    Smallest
  • Which molecule do scientists believe came first?
    hydrogen
  • The big number at the beginning of a formula
    coefficient
  • Atoms are found on the __________ __________
    Periodic Table
  • Combining atoms creates __________
    Molecules
  • How many elements are present in Na2s203
    3
  • True or false: The outer planets are made up of lighter molecules and the inner planets are made of heavier ones
    True
  • A group of two or more atoms that are bonded together
    molecule
  • How many total atoms are present in the compound 2Ca(OH)2?
    10