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Eighth Grade (Grade 8) Periodic Table and Elements Questions

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Grade 8 Periodic Table and Elements
How many neutrons does an atom of arsenic contain?
  1. 33
  2. 75
  3. 42
  4. 39
Grade 8 Periodic Table and Elements
Which of the following pairs of elements have the most similar properties?
  1. Phosphorus and Sulfur
  2. Fluorine and Boron
  3. Iodine and Chlorine
  4. Potassium and Calcium
Grade 8 Periodic Table and Elements
Each vertical column on the Periodic Table is called a(n)
  1. period.
  2. group.
  3. element.
  4. property.
Grade 8 Periodic Table and Elements
This element is used in popular antacids, such as milk of magnesia.
  1. Potassium
  2. Sodium
  3. Magnesium
  4. Beryllium
Grade 8 Periodic Table and Elements
The oxygen group is another name used for what group of elements?
  1. The Chalcogens
  2. The Halogens
  3. Noble Gases
  4. Metalloids
Grade 8 Periodic Table and Elements
There are more than 115 elements in the Periodic Table.
  1. True
  2. False
Grade 8 Periodic Table and Elements
Argon has a mass number of      40     .
Grade 8 Periodic Table and Elements
How many neutrons does an atom of copper have?
  1. 35
  2. 29
  3. 19
  4. 64
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