Periodic Table

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

• groups

• towers

• periods

• atomic numbers

Elements in a .................. have similar chemical properties.

• period

• group

• row

Which group of the periodic table is composed of inert (not reactive) gases?

answer choices

• alkali metals

• alkaline earth metals

• halogens

• noble gases

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Choose all the items that are elements.

• NaCl (table salt)

• Sulfur

• O₂

• Water

• Air

Choose all of the items that are compounds.

• NaCl (table salt)

• Sulfur

• O₂

• Water

• Air

Which element is similar to Li?

• Be

• K

Which element is similar to Mg?

• Ca

• B

Which element is similar to F?

• Ne

• Cl