atoms element and compounds

name three non-metals

• chlorine

• gallium

• helium

• bromine

• silycon

Select two words that describe this diagram

• molecule

• element

• atom

• compound

Select two words that describe this diagram

• molecule

• element

• atom

• compound

Contains two or more different types of atoms combined

• Elements

• Compounds

• Mixtures

Hammering wood together to build a playhouse

• Chemical change
• Physical change

The smallest bit of matter that is pure and can't be broken down into any other smaller substance by physical or chemical means.

• particle
• compound
• element
• atom

What is the name of a compound that contains sodium and flourine?

• sodium fluorine

• sodium hydroflouride

• sodium fluorate

• sodium fluoride

Carbon dioxide (CO₂) contains how many atoms of oxygen?

• 0
• 1
• 2
• 3

What is the total number of atoms in an ammonia (NH₃) molecule?

• 1
• 2
• 3
• 4

What is the name of this element?

• K
• Potassium
• 39.098
• 19