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Ninth Grade (Grade 9) Periodic Table and Elements Questions

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Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
What are the number of protons in an atom called?
  1. atomic number
  2. atomic mass
  3. atomic weight
Grade 9 Periodic Table and Elements
An element is a substance that
  1. exists naturally as a solid, liquid, and gas.
  2. cannot be broken down into simpler substances.
  3. is above 86 on the periodic table.
  4. can be broken down only by chemical means.
Grade 9 Periodic Table and Elements
Mendeleev arranged the elements in his Periodic Table in order of
  1. increasing atomic mass.
  2. increasing number of electrons.
  3. increasing atomic number.
  4. increased number of neutrons.
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
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