Across
- 3. the smallest particle of an element, made of electrons, protons and neutrons
- 5. a substance made by combing two or more substances that do not chemically bond
- 9. a subatomic particle with a negative charge and located floating around the outside of the nucleus of an atom
- 10. the common name for the substance with the chemical formula C6H12O6. (note: there are other formulas for different forms of this substance)
- 11. the common for the substance with the chemical formula NaCl
- 13. a pure substance composed of the same type of atom throughout
- 15. a chart for all known elements on earth, organized by physical and chemical properties
- 17. All things around us and in us are examples of __________.
- 19. a measure of how much material is in a substance
- 21. a subatomic particle with no charge (neutral) and located within the nucleus of an atom
- 22. the state of matter that can take the shape of any container it's in and has a definite volume
Down
- 1. a subatomic particle with a positive charge and located within the nucleus of an atom
- 2. the state of matter that can expand freely and has no definite shape or volume
- 4. the scientist recognized for creating the Periodic Table as we know it today
- 5. two or more atoms chemically bonded together
- 6. any form of matter that is uniform throughout and has consistent properties
- 7. a measure of how much space is taken up by a substance
- 8. Solid, liquid, gas and plasma are the four _________ of matter.
- 12. the center of an atom where protons and neutrons give an element its total mass
- 14. the common name for the substance with the chemical formula H2O
- 15. the state of matter that has the most energy within its atoms; similar to gas with charged particles
- 16. a substance made of two or more elements that are chemically combined in fixed amounts
- 18. the chemical connection between atoms in molecules
- 20. the state of matter with a definite shape and volume, and the least amount of energy in its atoms