Chemistry worksheets

A chemistry practice set: atom structure, element symbols, balancing equations and mole conversions. There are 4 sheets here: protons, neutrons, electrons, element symbols, balancing equations and mole conversions. Pick one from the tray, print it, and add its answer key as a second page if you want one.

Worksheets

add the answer key as page 2

NameDate

Protons, neutrons, electrons

For a neutral atom: protons = electrons = atomic number. Neutrons = mass number − atomic number.

Element	Symbol	Atomic number	Mass number	Protons	Neutrons	Electrons
Phosphorus	P		31	15
Carbon		6	12		6
Helium		2	4	2
Titanium	Ti		48		26
Potassium			39		20	19
Scandium		21	45			21
Fluorine			19		10	9
Magnesium		12			12	12
Lithium	Li	3		3
Chromium	Cr			24		24

Using these sheets

New problems gives the same kind of sheet with different numbers, so you can print one for class and another for homework.
The answer key matches the sheet on screen, including after you make new problems.
Sheets print on US Letter paper. On A4, choose “Fit to printable area” in the print dialog.

Questions

What grade are these chemistry worksheets for?

They suit grades 8 to 12. Each sheet in the tray practices it a different way, so you can pick the one that fits.

Is there an answer key?

Yes. Tick “add the answer key as page 2” before printing, or turn on Answer key to check work on screen.

Can I print more than one version?

Yes. Press New problems for a fresh set of the same kind, then print again. The answer key changes with it.

Do I need an account to print?

No. The sheets print straight from this page, free, with no sign-up.