This printable crossword puzzle on the topic of Elements & Periodic Table has 24 clues. Answers range from 4 to 28 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
smallest part of an element
Au
2 or more of the same atom
2 or more different elements (atoms)
smallest part of any substance
shorthand way to write a compound
elements and symbol don't match up
2 x n2
contains the proton and neutron
positive charge
found in energy levels
neutral charge
electrons
special diagram showing structure of atom
how many electrons in the fifth level of gold
how many energy levels to build krypton
greek philosopher
developed atomic theory
discovered electrons
discovered nucleus
developed the electron cloud theory
these move at nearly the speed of light
number of neutrons in roentgenium
these are always the same number