Periodic Table

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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Sodium (Na) is found in period 

• 3
• 2
• 4
• 1

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Sodium (Na) is found in group 

• 1
• 2
• 3
• 4

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What does the 6 represent?

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

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What does 12.011 represent?

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

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These are found on the Periodic Table.

• Compounds
• Elements
• Mixtures

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The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

Which one of these is not a noble gas?

• Helium
• Radon
• Iodine
• Krypton

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