Across
- 2. small, positively charged particle found in nucleus of atom
- 4. attraction between oppositely charged ions
- 6. a change in which new substances are formed is ____ change.
- 9. change in state from solid to gas
- 12. a reaction that absorbs energy
- 13. measure of how much matter is in an object
- 17. state of matter with definite volume but no definite shape
- 18. a reaction that releases energy
- 20. anything that has mass and takes up space
- 21. bond when atoms share electrons
- 23. electrons is the outer energy level are called ___ electrons
- 25. state of matter with no definite shape or volume
Down
- 1. state of matter with definite shape and volume
- 3. a small particle found in the nucleus of atom with no charge
- 5. a change that alters the form or appearance of matter is ___ change
- 7. measure of the force of gravity acting on an object
- 8. mass/volume
- 10. atom with an electric charge
- 11. the number of protons in an atom
- 14. study of the properties of matter and how matter changes
- 15. a pure substance that cannot be broken down into another substance by chemical or physical means
- 16. tiny, negatively charge particle in an atom
- 19. substance made of two or more elements chemically combined
- 22. ability to do work or cause change
- 24. basic particle from which all elements are made