Across
- 2. two or more of the SAME atoms bonded together
- 5. organizes all discovered elements in rows and columns according to increasing atomic number
- 7. one type of atom
- 9. a number found with every element on the periodic table that also determines how many protons are in each element
- 10. the weight of an atom found on the periodic table. This number helps you find the number of neutrons
Down
- 1. symbols and numbers that represent the amount and types of atoms present in a compound
- 3. a substance that is composed of only one type of atom or molecule
- 4. a unique abbreviation for every element that always starts with a CAPITAL letter
- 6. smallest unit of matter that cannot be divided
- 8. two or more DIFFERNT atoms bonded together