Atoms Crossword

Elements & Periodic Table Puzzles & Worksheets

This printable crossword puzzle on the topic of Elements & Periodic Table has 16 clues. Answers range from 4 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

They cannot be divided into smaller parts by ordinary means
Are found in shells or orbitals that surround the nucleus of an atom
Made up of protons and neutrons
The system of electrons surrounding the nucleus of an atom
460 BC: proposed that all things were made of “atomos”
1803; Teacher at Quaker school
1897; Discovered electrons
1912; Using his gold foil experiment
Call this the “planetary model”
The mass of an atom expressed in atomic mass unit
A unit of mass that describes the mass of an atom or molecule
The number of protons in the nucleus of an atom
An atom that has the same number of protons or the same atomic number
The sum of the numbers of protons and neutrons in the nucleus of an atom
Particle that has no charge
Particle that has a positive charge