Atoms, Elements, and Molecules

What is the most basic form of matter

• element

• atom

• molecule

• compund

An element is made up of

• one type of atom

• different types of atoms

• compounds

• electrons

Tags

NGSS.MS-PS1-1

How many atoms are there in the molecule O2?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms are there in the compound H20

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

A proton has a...

• positive charge

• negative charge

• neutral charge

Which of the following is a compound?

• H2

• Cl

• CO2

• O3

Tags

NGSS.MS-PS1-1

The number of protons in an atom determines the elements

• mass

• size

• electrons

• atomic number

There are 118 different types of atoms (elements)

• TRUE

• FALSE

What is the picture displayed?

• atom

• element

• compound

Tags

NGSS.MS-PS1-1

What are these?

• Compound

• molecule

Tags

NGSS.MS-PS1-1