This printable crossword puzzle on the topic of Elements & Periodic Table has 15 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Makes up all matter
Organized table containing all chemical elements
Used to identify atoms and found inside nucleus
Majority of atom's mass and found inside nucleus
Found outside the nucleus
Center of an atom
Outside part of atom containing electrons
Electrons found in outermost shell
Levels holding the electrons
Mass of an atom
Amount of protons
Cannot be broken down into simpler substances
Particles that make up an atom
Model of an atom discovered by Niels Bohr
Positive, neutral or negative