This printable crossword puzzle on the topic of Elements & Periodic Table has 12 clues. Answers range from 4 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Halogens
Noble gases
Alkaline earth metals
Alkali metals
Lanthanides
Actinides
Atom
Electron
Neutron
Proton
Boyle
Mendeleev