Across
- 5. The vertical columns in the periodic table
- 7. Area around a nucleus where electrons are mostly found
- 8. Have a pH less than 7
- 9. Two elements replace another to make a product
- 10. Atoms of the same element that have different numbers of neutrons
- 11. Amount of product actually obtained from a chemical reaction
- 13. 2 or more substances that combine to make another
- 15. Force of attraction between opposite charges
- 18. Substances that are made
- 20. Electron
- 21. Horizontal rows of elements
- 25. Mixture in which different materials can easily be distinguished
Down
- 1. Substances that react
- 2. Contains 2 or more gases, liquids, or solids substances blended evenly
- 3. A table filled with elements in order of atomic numbers
- 4. One substance breaks down, into 2 more
- 6. One element replaces another to make a product
- 8. Number of protons in an atom is equal to a number called blank
- 12. Scattering of light by colloidal particles
- 14. Positively or negatively charged, covalently bonded group
- 16. Two protons and two neutrons
- 17. Attraction formed when elements share electrons
- 19. Substance reacts with oxygen to make heat and light
- 22. produces OH- ions
- 23. A substance in which the atoms of 2 or more elements are combined
- 24. Numbers in front of each substance in an equation