Counting Atoms Notes Quiz

What is an ELEMENT?

• When you go to grade school

• A bunch of DIFFERENT kinds of atoms

• A single atom or group of atoms of the SAME kind

A SUBSCRIPT IS...

• Number to the left of the element symbol

• Number to the right of the element symbol

• the scientific name for a group of atoms

• A substance made of only one kind of atom

How many CARBON atoms are there in Pentane?

• 13

• 12

• 5

• 6

Think about the video...which is a property of pentane?

• flammable

• clear liquid

• a noble gas

• a shiny metal

A Coefficient tells you ....

• how many of that atom there is

• the atomic mass

• how many of that molecule there are

• where the element is found on the periodic table

Water is H²O. How many atoms of hydrogen are there?

• 1

• 2

• 3

• 4

How many ELEMENTS are in C₆H₁₂O₆?

• 1

• 12

• 3

• 6

Tags

NGSS.MS-PS1-1

How many ATOMS are there TOTAL in:

H₂SO₄

• 6

• 5

• 7

• 3

Tags

NGSS.MS-PS1-1

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Is this a picture of an ATOM, a MOLECULE, COMPOUND and/or an ELEMENT? (check ALL that apply!)

• ATOM

• MOLECULE

• ELEMENT

• COMPOUND