Elements and Compounds Quiz

What is an element?

• A substance that can be broken down into simpler substances by physical means.

• A substance that is composed of only one type of atom.

• A substance that can be broken down into simpler substances by chemical means.

• A substance that cannot be broken down into simpler substances by chemical means.

Give an example of an element.

• oxygen

• nitrogen

• carbon

• hydrogen

How many elements are there in the periodic table?

• 118

• 110

• 100

• 92

What is a compound?

• A compound is a substance formed by the physical combination of two or more elements.

• A compound is a substance formed by the chemical combination of two or more elements in definite proportions.

• A compound is a substance formed by the biological combination of two or more elements.

• A compound is a substance formed by the mechanical combination of two or more elements.

Give an example of a compound.

• carbon dioxide

• iron

• oxygen

• water

Tags

NGSS.MS-PS1-1

What is the difference between an element and a compound?

• An element is a mixture of different substances, while a compound is a pure substance.

• An element is a substance made up of two or more different elements chemically combined, while a compound is a pure substance made up of only one type of atom.

• An element is a substance that cannot be broken down into simpler substances by chemical means, while a compound is a substance that can be broken down into simpler substances by chemical means.

• An element is a pure substance made up of only one type of atom, while a compound is a substance made up of two or more different elements chemically combined.

What is the atomic number of carbon?

• 12

• 6

• 8

• 16

What is the symbol for gold?

• Ag

• Fe

• Cu

• Au

What is the chemical formula for water?

• HO

• H2O

• O2H

• H3O

Tags

NGSS.MS-PS1-1

What is the periodic table?

• A tabular arrangement of chemical elements.

• A map of the world's continents.

• A chart of the human body's organs.

• A list of common household items.

Tags

NGSS.MS-PS1-1