Periodic Table

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

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NGSS.HS-PS1-1

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

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A vertical column is called...

• group
• tower
• period
• crew

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The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

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The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

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What is the chemical symbol for Lithium?

• H
• He
• Li
• N

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How many elements follow the periodic law?

• 7
• 98
• 110
• All of them

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A rule that states that repeating chemical and physical properties of elements change periodically with the atomic number of the elements is the _________.

• periodic law
• alkaline-earth metals
• actinide
• group rule

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Pure forms of these elements are stored in oil so they won't react with oxygen and water in the air.

• Alkali Metals
• Alkaline-earth metals
• Halogens
• Noble Gases

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Most of the elements on the periodic table are classified as _____.

• Metals
• Nonmetals
• Metalloids
• Periods

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