Across
- 3. a process that involves rearrangement
- 4. chemical bond if the outer shell nucleus
- 8. negative charge
- 10. neutral charge
Down
- 1. amount of energy that a system described
- 2. the system of electron
- 5. positive charge
- 6. the horizontal rows of the periodic
- 7. periodic table same chemical elements
- 9. source of nuclear energy