Periodic Table Quiz

What is the primary purpose of the periodic table?

• To list all known compounds

• To organize elements by atomic number and chemical properties

• To display chemical reactions

• To show the history of element discovery

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Which of the following is a nonmetal according to the periodic table?

• Na

• Hg

• He

• Al

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What background color represents metals in the periodic table?

• Purple

• Orange

• Blue

• Yellow

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Which element is represented by the chemical symbol 'Hg'?

• Hydrogen

• Helium

• Mercury

• Magnesium

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What do the vertical columns on the periodic table represent?

• Periods

• Groups

• Rows

• Levels

How many valence electrons do elements in Group 1 have?

• 2

• 3

• 1

• 8

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Which group on the periodic table has elements with 8 valence electrons?

• Group 1

• Group 2

• Group 13

• Group 18

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Why do elements in the same group have similar chemical properties?

• They have the same atomic number

• They have the same number of valence electrons

• They are in the same period

• They have the same atomic mass

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How many valence electrons does oxygen have?

• 6

• 4

• 2

• 8

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Which element has 1 valence electron?

• Helium

• Hydrogen

• Neon

• Carbon

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