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The periodic table Quiz for Grade 9

10 science questions on the periodic table with answers, written for Grade 9. Use it as it is, change any question, print it with an answer key, or give it online and let it grade itself.

1.
Which element is located in Group 1 and Period 3 of the periodic table? (Multiple choice)
  1. Magnesium
  2. Sodium
  3. Chlorine
  4. Aluminum
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Sodium

Sodium is in Group 1 (alkali metals) and Period 3.
2.
What property increases as you move from left to right across a period? (Multiple choice)
  1. Atomic radius
  2. Metallic character
  3. Electronegativity
  4. Density
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Electronegativity

Electronegativity generally increases across a period due to increasing nuclear charge.
3.
Which of these elements is a noble gas? (Multiple choice)
  1. Nitrogen
  2. Neon
  3. Fluorine
  4. Oxygen
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Neon

Neon is a noble gas found in Group 18.
4.
What is the main reason elements in the same group have similar chemical properties? (Multiple choice)
  1. They have the same number of neutrons
  2. They have the same number of valence electrons
  3. They have the same atomic mass
  4. They have the same number of protons
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They have the same number of valence electrons

Elements in the same group have similar valence electron configurations, affecting their chemistry.
5.
True or False: The atomic number of an element is the number of protons in its nucleus. (True or false)
  1. True
  2. False
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True

Atomic number equals the number of protons in an atom's nucleus.
6.
True or False: Metals are generally found on the right side of the periodic table. (True or false)
  1. True
  2. False
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False

Metals are mostly on the left and center of the periodic table.
7.
Name the element with atomic number 12. (Identification)
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Magnesium

Magnesium has atomic number 12 on the periodic table.
8.
The elements in Group 17 are called _____. (Fill in the blank)
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halogens

Group 17 elements are known as halogens.
9.
Match each group with its common name. (Matching type)
1. Group 1
A. Alkaline earth metals
2. Group 2
B. Halogens
3. Group 17
C. Alkali metals
4. Group 18
D. Noble gases
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1 = Alkali metals; 2 = Alkaline earth metals; 3 = Halogens; 4 = Noble gases

These are the common names for these groups in the periodic table.
10.
List three properties of metals. (Enumeration)
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Good conductors of heat, Malleable and ductile, Shiny appearance

These are typical properties of metals.