Chemistry Crossword

6. Matter is not created nor destroyed in any chemical or physical change / Matter IS rearranged though
7. characteristics used to describe an object
8. elements in group 18 of the periodic table,nonreactive, colorless, odorless
10. Group 1, 1 electron in outer energy level, very reactive, soft, silver, shiny, low density
15. a change in which no new matter is made
17. The elements or compounds produced by a chemical reaction / on the right side of the yield sign
19. A combination of chemical symbols and numbers to represent a substance
20. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction / the "big numbers"
21. the process by which one or more substances change to produce one or more different substances

1. Horizontal rows on the periodic table
2. two or more atoms held together
3. Vertical columns on the periodic table
4. group 2 metals, very reactive, gray-white, good conductor of electricity
5. Group 17 Contains nonmetals / Very reactive
9. the process by which one or more substances change to produce one or more different substances
11. A substance made up of atoms of two or more different elements joined by chemical bonds
12. solid that forms from a solution in a chemical reaction
13. a change in which new matter is create
14. the arrow in the middle of a chemical equation that separates reactants and products
16. basic unit of matter
18. A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound / the "small numbers"