Across
- 7. A positively charged particle in the nucleus of an atom.
- 9. A neutral particle in the nucleus of an atom.
- 10. The most stable and unreactive of the group 18 elements in the periodic table.
- 13. A dull and brittle element that doesn't conduct electricity.
- 15. A reaction that takes place when two or more substances react to form new substances.
- 16. A combination of symbols that represent a compound, identifies what element and how much is in the compound.
- 19. Ability of a substance to conduct electricity or heat.
- 21. description of how a substance interacts with other substances. Only observable when chemical change occurs.
- 25. When a pure substance formed when at least one metal and one non-metal combine.
- 27. A substance made up of only one type of atom.
- 30. Characteristics that describes a particular substance.
- 32. The new substance produced in a chemical reaction between reactants.
- 33. Change of state from a liquid to a solid.
- 34. Group 1 elements in the periodic table, the most reactive of the metals
- 35. Group 2 elements in the periodic table, their reactivity isn't as strong as Alkali Metals
- 36. A mixture of two or more pure substances that looks like one substance.
- 37. When a group of atoms acts like one.
- 38. property that describes physical appearance and composition of a substance.
- 39. A table where elements are sorted by physical and chemical properties.
- 41. chemical reaction that takes place in cells.
- 42. Change in the appearance or state of a substance that doesn't change the composition.
- 44. Atom that has become electrically charged because it has lost or gained electrons.
- 45. Chemical reaction that releases energy.
- 47. A solution in which water is the solvent.
- 48. Shiny, malleable, ductile element that conducts electricity.
- 49. Change of state from a solid to a liquid
- 50. description of a solid that can be stretched into a long wire.
Down
- 1. Combination of pure substances.
- 2. Solid,liquid, gas, and plasma.
- 3. Description of a substance that can be pounded or rolled into sheets.
- 4. slow chemical change that occurs when oxygen in the air reacts with a metal.
- 5. A group of atoms joined together to make an object.
- 6. Substance in a chemical reaction to make new substances with different qualities.
- 8. Chemical reaction that occurs when oxygen reacts with a substance to form a new substance.
- 11. A cloudy mixture in which tiny particles can be separated out.
- 12. Change of state, from gas to liquid.
- 14. Mixture in which the different substances that make up the mixture are visible.
- 17. chemical combination of two or more elements in a specific ratio.
- 18. Anything that has mass and occupies space.
- 20. The most reactive non metals.
- 22. change of state from a solid to a gas or from a gas to a solid.
- 23. Amount of mass in a given volume of a substance.
- 24. Change of state from gas to solid.
- 26. change that results when two or more substances react to create a different substance or substances, the new substance would be completely different from the original.
- 28. Chemical reaction that absorbs energy.
- 29. Substance made of only one kind of matter.
- 31. An element that has both metallic and nonmetallic properties.
- 40. Change of state from a liquid to a gas .
- 43. Mass of a substance that can dissolve in a given amount of solvent to make a saturated solution at a given temp.
- 46. A cloudy mixture which particles cannot be separated out from the other substance.