Across
- 2. Found on the periodic table and cannot be separated out to a more pure form.
- 4. A group of elements with the same number of valence electrons, and similar characterics including reactivity.
- 10. Family with 3 valence electrons.
- 11. Type of physical property that does not depend on the amount of mass of a substance.
- 15. Discovered the modern periodic table.
- 16. An amount equal to 6.02 x 10^23.
- 17. Type of mixture that cannot be easily separated such as Kool-aid, generally a solution.
- 19. Family with an oxidation number of -3.
- 20. Type of physical property that depends on the amount of mass of a substance.
- 21. Good conductor of heat and electricity, malleable, shiny.
- 24. Your current science class.
- 25. Mass is neither created nor destroyed, it just changes forms. Basis for the chemical reaction--what goes in must come out (5 words).
- 29. Has an atomic mass of 12.011.
- 31. Many data points that are closely grouped together.
- 32. Has the atomic symbol Na.
- 34. Compressible, atoms move quickly and have a large amount of space between them--no fixed shape or volume.
- 35. A physical property defined at mass/volume and has units of g/ml org/cm^2.
- 39. Used gold foil experiment to determine that most of an atom's mass is in the nucleus.
- 41. Establishes identity of the element.
- 43. Conroe high school mascot.
- 44. Has an atomic number of 17.
- 46. An element that has lost or gained electrons.
Down
- 1. Negative particle of an atom.
- 3. A negative ion.
- 5. Variations of an element with different numbers of neutrons.
- 6. Vertical columns of elements on the periodic table.
- 7. Most reactive family of elements (2 words).
- 8. Type of mixture that can be easily separated such as chunky peanut butter, or stew.
- 9. The densely packed middle of an atom.
- 12. Dull, brittle, most are gases, poor conductors of heat and electricity.
- 13. Change that results in new compounds.
- 14. Hypothesized that electrons traveled in discrete orbits around the nucleus.
- 15. The mass of one mole of an element and is equal to its atomic mass in grams (2 words).
- 18. The combination of 2 or more substances that does not result in a chemical change.
- 22. The result of a chemical reaction.
- 23. The number of protons and neutrons in the nucleus (2 words).
- 24. 2 or more molecules or elements chemically bound to each other and can only be changed by a chemical reaction.
- 26. The number of protons in an element (2 words).
- 27. Chemical family that does not react (2 words).
- 28. Attaining the intended target.
- 30. Has the atomic symbol Xe.
- 31. Property that can be observed by the 5 senses.
- 33. Published the first periodic table in which the elements are arranged by atomic.
- 36. Not compressible, atoms are closely packed and only move slightly--has a fixed shape and volume.
- 37. What goes into a chemical reaction.
- 38. A positive ion.
- 40. When 2 or more elements come together and bind chemically.
- 41. Horizontal rows of elements on the periodic table.
- 42. State in which we live.
- 45. Slightly compressible, atoms slide past one another--no fixed shape, but does have a fixed volume.