Unit 3 Review

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

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NGSS.HS-PS1-1

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An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

Which color on the image of the periodic table corresponds with the halogens.

• red

• black

• blue

• orange

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NGSS.HS-PS1-1

Which color on the image of the periodic table corresponds with the lanthanides.

• red

• black

• blue

• orange

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Which color on the image of the periodic table corresponds with the noble gases.

• red

• black

• blue

• orange

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Which color on the image of the periodic table corresponds with the transition metals.

• red

• black

• blue

• orange

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Which color on the image of the periodic table corresponds with the metalloids.

• bright yellow

• gold

• teal

• light blue

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Which color on the image of the periodic table corresponds with the alkaline earth metals.

• yellow

• dark yellow

• blue/green

• teal

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Mendeleev first ordered the periodic table of elements by increasing

• atomic number

• atomic mass

• atomic symbol

• atomic weight