Periodic Table Crossword Puzzle
This printable crossword puzzle on the topic of Elements & Periodic Table has 10 clues. Answers range from 4 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
a substance whose atoms all have the same number of protons
the number of protons in the nucleus of an atom.
average mass of atoms of an element; isotopes
elements in the same column; often share similarities
rows in the periodic table; seven rows currently
element represented by the symbol H: atomic number is 1
element represented by the symbol "Ca"; atomic number is 20
element represented with the symbol "Au"
have a central core (the nucleus) made up of smaller particles called protons and neutrons.
negatively charged subatomic particle; can be free or bound to the nucleus of an atom; represents energy levels
