Across
- 3. change of one substance in to a new substance
- 6. positive or negative number that indicates how many electrons an atom has gained, lost or shared to become stable
- 7. process in which one or more substances are changed into new substances
- 10. the force of attraction between the opposite charges of the ions in an ionic compound
- 12. covalent bond in which the electrons are not shared equally, resulting in a slightly positive end and a slightly negative end
- 13. the process of a solid changing directly to a vapor without forming a liquid
- 14. compound that that is composed of two electrons
- 17. a neutral particle that forms as a result of electron sharing among atoms
- 18. the temperature at which the pressure of the vapor of a liquid is equal to the external pressure acting on the surface of the liquid
- 20. temperature at which a solid begins to liquefy
Down
- 1. any change in size, shape, or state of matter in which the identity of the substances remains the same
- 2. in a chemical reaction, the new substance or substance formed
- 4. attraction formed between atoms when they share electrons
- 5. chemical shorthand that uses symbols to tell what elements are in a compound and Meir ratios
- 8. positivity or negatively charged, covalent bonded group of atoms
- 9. with enough energy to overcome the attractive forces within its atom, composed of positively and negatively charged particles
- 11. charged particle that has either more or fewer electrons than protons
- 15. a covalent bond in which electrons equally by both atoms
- 16. force that holds atoms together in a compound
- 19. in a chemical reaction, the substances that reacts