Across
- 3. How elements are organized and identified on the periodic table
- 7. When an atom emits mass and energy, also called radiation
- 8. Contains protons and neutrons, center of an atom
- 9. A series of events is caused by the previous one
- 10. Large atom splits into 2 or more smaller atoms and releases 2 or 3 neutrons
- 11. When the mass is different than what is shown on the periodic table
- 13. Time required for half of a sample to decay
- 14. Neutral Charge
Down
- 1. Most dangerous type of radiation
- 2. Nuclei of 2 atoms combine
- 4. Negative charge, when neutron turns into proton, this is released
- 5. Positive Charge, amount of this is Atomic Number
- 6. Weakest type of radioactive decay emits this
- 12. The weight of an atom shown on the periodic table