This printable word search puzzle contains 21 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
valence electrons
atomic number
energy level
noble gasses
coefficient
atomic mass
subscript
orbitals
negative
positive
reactive
hydrogen
electron
neutral
periods
nucleus
neutron
charge
groups
proton
atoms