Across
- 3. this is a row on the periodic table
- 5. this is a charged atom
- 6. opposite charges ______ each other
- 7. the smallest unit of an element that still retains its properties
- 8. the sum of the protons and neutrons in an atom
- 9. a region of negative charge in which there is a high probability of finding an electron
- 11. this can also be referred to as a family and are the columns of the periodic table
- 13. atoms of the same element with different masses
- 14. the subatomic particle with almost no mass
Down
- 1. the weighted average of all the different isotopes of an element
- 2. this is a positive subatomic particle
- 4. the periodic table is arranged by this number
- 10. this is a neutral subatomic particle
- 12. like charges _______ each other