Chemistry Crossword

3. The smallest unit of an element that still retains the properties of that element
4. A subatomic particle that contributes to an atom's mass, but not its charge
7. A bond in which electrons are transferred
10. Electrons in the outermost energy shell of an atom
12. A negatively charged subatomic particle
15. A bond between non-metals with a small difference in electronegativity
16. The distance between peaks of a wave

1. Group 17; highly reactive non-metals
2. A subatomic particle that determines the identity of an atom
5. A measure of how much an atom attracts electrons in a bond
6. The electromagnetic radiation with more energy than visible light, but less energy than X-rays
8. A measure of how reactive an element is
9. How many peaks of waves pass a fixed point in one second
11. A negatively charged ion
13. The strong nuclear force created by the attraction between these holds the nucleus of an atom together
14. An atom that has lost electrons