Atoms and Molecules

Smallest particle of any pure element that contains protons, neutrons, electrons

• atom

• molecule

• element

• compound

The ____________ tells you how many atoms there are.

• Subscript

• Coefficient

Tags

NGSS.MS-PS1-1

_______________ cannot be broken down by any processes. Examples are H, O, Pb, Fe...etc.

• Elements

• atoms

• compounds

• molecules

____________ are the smallest particles of a substance that are made up of two or more atoms.

• molecules

• compounds

• atoms

• elements

Tags

NGSS.MS-PS1-1

What tells you how many of that molecule there are?

• Coefficient

• Subscript

If there is no subscript or coefficient, it is assumed the number is

• one (1)

• two (2)

• three (3)

• four (4)

_______________ are a chemical substance made up of two or more different atoms bonded together

• compounds

• molecules

• atoms

• elements

Tags

NGSS.MS-PS1-1

Compounds are different from molecules because they contain two or more atoms that are

• different

• the same

How many elements are in the chemical formula H₂O?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many molecules are there in the chemical formula 4Fe(SO₃)₂?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1