1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Atomic Structure BondingWaterpHGrab Bag

2. This subatomic particle determines chemical properties

3. What is the electron?

4. This subatomic particle controls an elements physical properties

5. What is the proton?

6. This is the name for an element that has added or lost a neutron.

7. What is an isotope?

8. The charge of an atom that has 114 protons and 117 electrons.

9. What is -3?

10. The percent of mass located in the nucleus of an atom

11. What is >99%

12. A pure substance, formed by the chemical combination of two or more elements in definite proportions

13. What is a compound?

14. The type of bond pictured above (electrons are shared)

15. What are covalent bonds?

16. The type of bond depicted in this cartoon

17. What are ionic bonds?

18. The names of three chemical compounds, and their chemical formulae

19. _____?

20. The type of attraction (relatively weak) between oppositely charged molecules

21. What are van der Waals forces?

22. This is the molecular property that makes water have so many special qualities

23. What is its polarity?

24. Because of their oppositely charged ends, water molecules stick to each other due to this type of bond

25. What is a hydrogen bond?

26. The phenomenon that occurs when molecules of different substances attract to each other

27. What is adhesion?

28. Demo Daily Double The effect that makes this happen

29. What is capillary action?

30. In Kool-aid, this is the solvent

31. What is the water?

32. The pH of a “neutral” substance

33. What is pH 7?

34. The type of substance that contain high concentrations of H+ ions

35. What are acids?

36. The approximate pH of bleach (plus or minus 1)

37. What is 13?

38. A weak acid or base that prevents sharp changes in pH

39. What are buffers?

40. The formula for the breakdown of water into its two ion constituents

41. What is

42. The chemical symbol for Helium

43. What is “He”?

44. The most abundant element in the universe, by far

45. What is hydrogen?

46. The last element that can be forged in a star before it blows up in a nova

47. What is iron?

48. The chemical symbol of gold

49. What is Au?

50. 2 of the 4 groups of organic compounds in all living things

51. What are carbohydrates, lipids, nucleic acids, and proteins?