This printable crossword puzzle has 11 clues. Answers range from 6 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
is a dense, positively charged mass located in the center of the atom
a positively charged subatomic particle that is found in the nucleus of an atom
a negatively charged subatomic particle that is found in the space outside the nucleus
a neutral subatomic particle that is found in the nucleus of an atom
an element equals the number of protons in an atom of that element
an atom is the sum of the protons and neutrons in the nucleus if that atom
are atoms of the same element that have different numbers of neutrons and different mass numbers
the possible energies that electrons in an atom can have are
a visual model of the most likely locations for electrons in an atom
the arrangement of electrons in the orbitals of an atom
an atom have the lowest possible energies