1				2				3
												4
			5
																		6	7
									8					9
10							11
					12							13
											14
																15
					16														17
								18																			19
			20											21
								22
																						23
															24

Across 4. Group 2 Elements 6. The process of making an atom into an ion is called 10. An exception in the Periodic Table. There is more of this in the universe than any other element 12. This element is inside balloons 14. Groups 1 elements 16. Chemist who rearranged the periodic table by placing the lanthanide/actinide series at the bottom of the table. 18. These elements make good semiconductors and are located along the diagonal line between the metals 20. These type of elements have these properties: luster, good conductors of heat and electricity, typically solid at room temperature, and bendable 22. The arrangement of electrons within an atom 23. This element is in bananas 24. A measure of the ability of an atom in a chemic compound to attract electrons

Down 1. Elements in groups 3-12 2. Father of the Periodic Table 3. Published a list of all the known elements in 1862 5. Stinky-smelling substances inside the volcano 7. Atoms have a desire to gain, lose or share electrons so they can have eight electrons 8. Determined by the finding the distance between the nuclei of two touching atoms, and then halving that distance 9. All the elements of upper right corner of the Periodic Table (including Hydrogen) 11. in group 18 elements and have 8 electrons in its outer shell 13. Outermost electrons in an atom 15. A big grid that contains elements 17. Group 17 elements and have 7 electrons in its outer shell 18. Arranged the elements according to increasing atomic numbers 19. Rows of elements that goes left to right 21. This element is in coins