Atoms and Molecules

Name

The smallest particle of an element is called a(n)

• molecule
• compound
• atom
• subscript

My coffee is an example of a

• compound
• element
• heterogeneous mixture
• homogeneous mixture

A group of 2 or more elements that are held together by chemical bonds (hint: they can be the same element)

• compound
• molecule
• mixture
• atom

A number in front of a chemical formula in an equation that indicates how many molecules or atoms are in a compound.

• coefficient
• subscript
• atom
• molecule

Table sugar added to coffee is an example of a

• compound
• element
• homogeneous mixture
• heterogeneous mixture

A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound

• coefficient
• subscipt
• molecule
• atom

Helium (He) inside a balloon is an example of a

• homogenous mixture
• heterogeneous mixture
• pure substance - compound
• pure substance - element

A substance made up of two or more different elements joined by chemical bonds

• molecule
• element
• compound
• mixture

Baking soda (NaHCO3) is a

• heterogeneous mixture
• homogeneous mixture
• substance - compound
• substance - element