Across
- 1. invisible negatively charged particle that orbits the nucleus of an atom
- 4. an experiment in which all reactants and all products of a chemical reaction are accounted for
- 6. the amount of mass in a given volume of substance
- 8. positively charged center of an atom
- 9. mass of a substance tha can dissolve in a given amount of solvent to form a saturated solution at a given temperature
- 10. description of a solid that can be stretched into a long wire
- 11. description of a substance that can be pounded or rolled into sheets
- 12. change in appearance or state of a substance that does not change the comopsition
- 15. substances that helps a chemical reaction to proceed more quickly
- 16. is the ability of a substance to conduct electricity or heat
- 20. number of protons in a nucleus of one atom of an element
- 22. change of state from a liquid to a solid
Down
- 1. orbit of electrons around the nucleus of an atom
- 2. anything that has mass and occupies space
- 3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- 5. measure of atomic mass
- 7. change of state from a gas to a liquid
- 13. the smallest part of an element that is a representative of that element
- 14. change of state from a liquid to a gas
- 17. slow chemical change that occurs when oxygen in the air reacts with metal
- 18. ability to do work
- 19. group of 17 elements in the periodic table
- 21. change of state from a solid to a liquid