the particle model and atomic structure
Across
- 2. In 1903, this scientists showed that electrons in the orbiting shells are attracted the the negatively charged nucleus.
- 3. The smallest particle of an element that still has its chemical properties
- 6. A change that produces one or more new substances
- 9. Atoms of an element with the same number of electrons and protons but different number of neutrons
- 12. this model shows how particles are arranged in a solid, liquid and gas
- 13. Charged particles, formed when atoms gain or lose electrons
- 14. When a substance changes shape or state, no new substance it made
- 15. The total number of protons and neutrons
- 16. A tiny bit of matter, they can be large enough to see or too small to see, even with a microscope
- 17. An example of an element, with the chemical symbol Au
- 18. John ______ suggested, kin 1803, all atoms are made from atoms and all atoms of an element are identical
Down
- 1. An example of a chemical change
- 4. Devised the plumb pudding model in 1987, suggesting all atoms contain electrons and atoms are neutral overall
- 5. Everythign around you is made from this. Begins with 'm'
- 7. Forces between atoms in molecules. Begins with 'b'
- 8. These are subatomic particles that are neutral in charge and are found in the nucleus of an atom
- 10. These are subatomic particles that are negatively charged and belong in the shells of an atom
- 11. Made from two or more atoms joining together
- 14. These are subatomic particles that are positively charged and are in the nucleus of an atom