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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
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
The number of protons in an atom is called the
  1. atomic number
  2. atomic mass
  3. atomic weight
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
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
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
The sum of the number of protons and the number of neutrons in an atom is
  1. atomic number
  2. atomic mass
  3. mass number
  4. none of the above
Grade 9 Periodic Table and Elements
Grade 9 Periodic Table and Elements
Isotopes are atoms of an element
  1. with the same number of electrons but different numbers of protons.
  2. that are radioactive
  3. with a magnetic charge
  4. with the same number of protons but different number of neutrons
Grade 9 Periodic Table and Elements
A horizontal row on the periodic table is also called a
  1. group
  2. family
  3. period
  4. none of the above
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