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 1. 8 valence electrons 6. P1-V1=P2-V2 7. breaking down in 2 or more elements 9. measure of gas hitting against sides of a object 13. more than one atom 14. unit used for space of a gas 16. unit of temp for gas 17. causes reaction 18. most electrons are 19. V1-T1=V2-T2 22. carbon based compund reaction 23. metal and nonmetal 24. negative ion

Down 2. 2 nonmetal 3. unit of temp 4. outer most energy level 5. shows electrons around a element 8. result of reaction 10. combination 11. number before a molecule in a reaction 12. P1 V1/T1 P2 V2/T2 15. caused by combustion reactions 20. unit of pressure 21. product of combustion reactions with heat 22. positive ion