1
		2										3
								4
																	5
				6				7
							8
9
															10
		11
	12
	13											14
								15
			16
															17
												18

Across 4. Name of the element found in Group Six (16) Period Two 6. Potassium has ________ valence electrons. 8. All elements in Group Six (16) form ions with this charge 9. Phosphorus has _________ valence electrons. 11. The rule that state elements want 8 valence electrons in their outermost orbit 12. All elements in Group Five (15) form ions with this charge 13. An ion with a positive charge 14. Name of the element found in Group One, Period Three 16. All elements in Group Three (13) form ions with this charge 17. Strontium has ________ valence electrons. 18. Name of the element found in Group Three, Period Two

Down 1. Electrons found in the outermost orbit of an atom 2. All elements in Group One form ions with this charge 3. All elements in Group Seven (17) form ions with this charge 5. An ion with a negative charge 7. The rule that states elements want 2 valence electrons in their outermost orbit 10. All elements in Group Two form ions with this charge 15. Oxygen has ________ valence electrons.