This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Nonmetalic
Luster
Valence electrons
Atomic number
Atomic mass
Semi metal
Nonmetal
Halogen
Actinide
Basic metal
Noble gas
Lenthenide
Electronegativity
Nuclear charge
Element
Atom
Period
Group
Reactivity
Protons