chemistry topic elements and compunds

What is an element?

• A mixture of different substances

• A substance that cannot be broken down into other substances

• A type of compound

• A liquid

Which of these is an example of an element?

• Water

• Air

• Gold

• Salt

What is platinum used for?

• Making jewelry

• Catalytic converters in cars

• Heart pacemakers

• All of the above

About how many elements exist naturally?

• 10

• 50

• 92

• 200

What does the Periodic Table do?

• Lists all the compounds

• Lists all the elements

• Shows how to make elements

• Shows how to break down elements

What is a chemical symbol?

• A long word for an element

• A picture of an element

• A one- or two-letter code for an element

• A type of atom

What is the chemical symbol for carbon?

• Ca

• Co

• C

• Cr

What is the chemical symbol for gold?

• Gd

• Go

• Au

• Ag

What is the chemical symbol for iron?

• Ir

• Fe

• I

• In

What is an atom?

• A large piece of an element

• The smallest part of an element that can exist

• A type of compound

• A molecule