1
2
									3
								4					5					6
			7
		8									9					10
11					12						13
			14					15
																				16
										17
															18
														19
								20
												21
22
										23

Across 2. Greek term for indivisible 4. A series of measurements that are repeatable 8. J.J. Thomson proposed that electrons are in a positive jelly in a model called the _____ pudding model 9. Regions of electron probability in atoms 11. A horn-shaped or conical receptacle or ornament 14. The 3rd Thursday in November 19. The charge of a neutron 20. A bread made of a course. yellow meal 21. A day fixed by a law of a custom in honor of an event or person 22. President who changed the date of thanksgiving twice 23. Macy's Thanksgiving Day

Down 1. Element that Ernest Rutherford hurled alpha particles at in the early 1900s 2. Measurement close to a known value 3. A 5k run on Thanksgiving Day, Turkey ______ 5. Elements and Compounds are classified as pure _________________ 6. The charge of a proton 7. Niels Bohr Model of the Atom 10. The simplest and smallest form of Matter 12. A mat-forming shrub of Eastern North America, an Evergreen, having pink flowers and tart, red, edible berries 13. The most modern model of the atom is the ______ mechanical model 15. Digits kept in a measurement or calculation to maintain accuracy 16. Location of protons and neutrons 17. Charge when an atom's number of protons equals its number of neutrons 18. The charge of an electron