All About Atoms Crossword Puzzle

QUESTIONS LIST:

• orbital : electrons are found here
• atomic number : number of protons in a nucleus of an atom
• cation : positively charged ion
• neutron : particle in an atom's nucleus with no charge
• anion : negatively charged ion
• mass number : protons + neutrons in a nucleus
• mole : 6.02 x (10)23
• electron : negatively charged particle found in the shell
• valence electron : an atom in the outer shell
• isotope : two atoms of the same element having different numbers of neutrons
• photon : a packet of light
• proton : positively charged particle in an atom's nucleus
• nucleus : contains protons and neutrons