Chemistry vocab

4. the smallest building block of matter
5. name of the columns in the periodic table
7. two or more elements evenly combined forming a new substance
9. The center of an atom
10. When a substance combines with another to create a new substance
12. A quality that can be established by changing a substance´s chemical identity
14. A subatomic particle found in the orbital field of an atom and has a negative charge
15. Anything that takes up space and has mass

1. name of the rows in the periodic table
2. particles smaller than an atom, they come together to form a stable atom
3. a subatomic particle found within an atom, has a positive charge
6. How much space an object takes up
8. A subatomic particle found in the nucleus of an atom and has no charge
11. The amount of matter in an object
13. A pure substance that cannot be broken down, 118 found on the periodic table