Which is the best description of an element?

• A substance that cannot be broken down into simpler substances

• A collection of atoms that have different abilities when joined together

• A man-made mineral

• A mixture of substances

Which one is a compound?

• Ni

• F

• Re

• NaCl

Tags

NGSS.MS-PS1-1

How many different elements are in the compound?

• 12

• 3

• 24

• 6

Tags

NGSS.MS-PS1-1

The place where known elements are represented...

• The Periodic Table

• Compounds

• Chemical Formula

• Graph

One way to tell how many elements a compound has is to...

• multiply the number

• count the capital letters

• add up all the numbers

• count the letters

Tags

NGSS.MS-PS1-1

A substance that consists of 2 or more different elements is a...

• element

• data table

• symbol

• compound

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O

• H₂

• NaCl

• CaCO₃

Tags

NGSS.MS-PS1-1

What is made up of two or more elements that are chemically combined?

• Element

• Mixture

• Compound

• Solids

How many elements are represented in the compound?

Na₂CO₃

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many elements are represented in the compound?

Na₂CO₂H₂C

• 5

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1