Across
- 4. Consists of two or more elements or compounds not chemically bonded
- 7. The number in the periodic table stating the total number of protons and neutrons in an atom
- 8. The overall charge of an atom
- 12. The number in the periodic table stating the number of protons an atom has
- 13. Contain two or more elements chemically bonded
- 14. The Alpha Particle Scattering Experiment led to the discovery of the...
Down
- 1. The number of protons in an atom is the same as the number of...
- 2. The average mass of an atom that takes into account the abundance of isotopes of the element
- 3. The subatomic particle with a relative charge of +1 and a relative mass of 1
- 5. The smallest part of an elements that can exist
- 6. Atoms of the same element with the same number of protons but a different number of neutrons
- 7. Formed from a reaction between two of the same atom
- 9. proton The subatomic particle with a relative charge of -1 and a very small relative mass
- 10. An early model of the atom that depicted a ball of positive charge with negative electrons in it
- 11. proton The subatomic particle with a relative charge of 0 and a relative mass of 1
