Across
- 3. The ability of an atom to release energy and mass, a process which is known as radiation
- 5. The number of protons in an element
- 7. The center of an atom, made up of protons and neutrons
- 8. number The total number of protons and neutrons in an atom
- 12. The amount of time it takes for half of a radioactive substance to decay
- 13. Atoms of the same element with different numbers of neutrons
- 14. A subatomic particle that has a positive charge, it is also found in the nucleus
Down
- 1. A series of decay reactions that are caused by the unstable atom of the previous element
- 2. A negatively charged particle, or electron, that is released from an atom when an atom decays
- 4. radiation A highly dangerous type of radioactive decay, it has no mass and the isotope doesn't change when it is released
- 6. It is also known as radioactive decay, it involves the nucleus of a larger, unstable atom splits into smaller ones and releases neutrons
- 9. particle A type of decay particle, it is the least dangerous and the particle is Helium
- 10. The nuclei of two atoms fuse, forming a larger atom, and this reaction causes high amounts of energy released
- 11. A subatomic particle, it has no charge and is found in the nucleus