Across
- 3. any of a class of chemical reactions in which an atom or group of atoms is added to a molecule
- 5. the lowest energy state of an atom or other particle
- 8. the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase
- 9. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
- 12. expresses the amount of a substance present in a mixture
- 14. made up of one or more atoms
- 17. a substance that has a bitter taste and reacts with an acid to form a salt
- 18. a covalent linkage in which two atoms share three pairs of electrons
- 20. something formed by a union of elements or parts
- 21. any substance that cannot be decomposed into simpler substances by ordinary chemical processes
- 22. any atom or group of atoms that bears one or more positive or negative electrical charges
Down
- 1. the quantity of matter contained in an atom of an element
- 2. atom or group of atoms that bears a positive electric charge
- 4. a substance that enters into and is altered in the course of a chemical reaction
- 6. a dynamic state where the concentration of all reactants remains constant
- 7. the mass of one mole of a substance
- 10. a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself
- 11. stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge
- 13. elements on the right of the periodic table
- 15. a measure of the average kinetic energy of the atoms or molecules in the system
- 16. any of the five elements fluorine, chlorine, bromine, iodine, and astatine
- 19. the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus