Across
- 2. Are good conductor of electricity and are usually shiny
- 4. (on the P.T.):Rows that go up by electrons highest electricity level
- 6. The ingredients produced after a reaction
- 8. A substance that is made from atoms with the same number of protons
- 10. Has both characteristics of a metal and non-metal
- 11. Gas: A group of rare element gases
- 13. Element abbreviation
- 14. Has a negative charge
- 16. A form of matter that cannot be broken down by any chemical means
- 19. A reaction where when cold is created
- 20. Has no electric charge
- 21. The ingredients present before a reaction
Down
- 1. of Conservation of Mass: After a reaction mass cannot be created or destroyed
- 2. Two or more atoms chemically bonded
- 3. (on the P.T.):Columns of elements that have same chemical properties
- 4. Has a positive charge
- 5. The regional space around the nucleus of an atom
- 7. The center of an atom
- 9. Bad conductor of electricity and a dull appearance
- 12. A reaction where heat is created
- 15. Mendeleev: A Russian chemist that came up with the periodic table
- 17. electron: The outermost shell of an electron determines the atom's chemical properties
- 18. A substance made from the mixture of two or more atoms
- 22. number: The number of protons in the nucleus