1								2
3			4											5
						6
								7								8
9
										10											11
								12
					13										14
15															16
			17		18							19
					20							21
															22
23																	24
														25
				26			27
				28								29	30
		31
										32
		33

Across 3. Number of valence electrons that second ring of atom can hold 5. Element in alkaline earth family that has the smallest atomic size 7. Element in period 5 with the largest ionization energy 8. Transition metal that has 26 neutrons and 22 electrons 9. All metals are this type of ion 10. Laboratory technique that can be used to make get drinking water from salt water 13. Element in period 2 that has a negative 3 charge as an ion 16. Number of valence electrons alkali metals have 20. Atom that has gained an electron is called this 21. An educated guess 22. The majority of the atom is ________ space 23. Element that could have an isotope with atomic number of 12 and a mass of 26amu 25. Noble gas with the largest atomic size 26. Scientist that determined that there was a positively charged nucleus 29. Semimetal that has 4 valence electrons and is used to make glass 31. Scientist that discovered the electron using the cathode ray tube experiment 32. Element with the lowest electronegativty in period 3 33. Element in period 5 with the largest ionic radius

Down 1. Most electronegative element in periodic table 2. Francium would have chemical properties most similar to elements from this family 4. Noble gas that does not have 8 valence electrons 6. Semimetal with 5 valence electrons 11. Where all of the mass of an atom is located 12. Element in period 4 with the most neutrons 14. Atoms that have the same number of protons but a different number of neutrons 15. Element in period 4 with 3 valence electrons 17. Subatomic particle that identifies an element 18. Alkaline earth metal with a nuclear charge of +12 19. Element in period 3 with a negative 3 charge 24. Element with 3 valence electrons that does not have an octet during bonding 27. Chlorine is a member of this family 28. The least reactive transition metal 30. Atoms that have the same number of protons but a different number of electons