Periodic Table

Each horizontal row of elements is called a(n) __. Each vertical column is called a(n) ___.

• group, period

• period, group

• family; periods

Demetrius Mendeleev developed a chart like arrangement of the elements called the __

• elelments

• peroics

• periodic table

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The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

?

• Helium
• Oxygen
• Sodium
• Phosphorous

Which element is similar to Mg?

• Ca

• B

• O

• Cl

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Which element is similar to He?

• H

• Ar

• Au

• Hg

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Which element is similar to Li?

• Be

• K

• Fe

• I

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Which element is the least reactive?

• Li

• Ne

• B

• C

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Each of the elements in the column labeled 17 is called a(n) __.

• Alkaline metals

• Alkaline earth metals

• Halogens

• Noble gases

Which element is similar to B?

• C

• Al

• Cl

• Na

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