Across
- 4. A change in matter that creates a new substance
- 7. the material(s) that are on the left side of the arrow in a chemical equation
- 9. a trait that describes how matter can change into a different substance
- 10. a row on the periodic table that is organized by sequential atomic numbers
- 11. a number that comes in front of a chemical formula and tells how many molecules of that substance you have
- 13. an element on the left side of the zigzag line on the periodic table that is malleable, is ductile, is a conductor, has luster, and has a high density.
- 16. an element on the right side of the zigzag line on the periodic table that does not conduct electricity, is brittle, and is dull.
- 17. this type of material has a constant composition and has consistent properties throughout the sample. Both elements and compounds are considered to be this.
- 20. the ability to complete an electrical circuit
- 23. an indicator that turns magenta in a base and remains clear in an acid
- 25. a substance made of two or more elements chemically joined
- 27. the atomic ____ is the average sum of protons and neutrons in an atom
- 30. a mixture that is NOT the same throughout, like salad
- 31. this indicator turns blue in a base and red in an acid
- 34. this number tells how many of each kind of atom are in a compound
- 36. a trait that can be observed without changing the kind of matter
- 38. the temperature at which a substance will change from solid to liquid
Down
- 1. a change in matter that DOES NOT change what the substance is
- 2. a vertical column or group of elements on the periodic table that all have similar properties
- 3. the relative resistance of a material to denting, scratching, or bending
- 5. the part of an atom that contains protons and neutrons
- 6. the negatively charged subatomic particle
- 8. this type of element is found along the zig-zag line on the periodic table and has properties of both metals and nonmetals
- 12. The law of ____ of matter states that matter cannot be created or destroyed
- 14. the subatomic particle with no charge
- 15. a solid that forms when two non-solids react
- 17. the new material(s) that are formed at the end of a chemical reaction
- 18. a substance made of only one type of atom
- 19. a solution that tastes bitter, feels slippery, and has a pH greater than seven
- 21. the atomic ____ represents the number of protons in one atom of an element
- 22. the ability to be bent or hammered into different shapes
- 24. a mixture that is the same throughout, like salt water
- 26. a solution that is neither an acid nor base. It has a pH of seven.
- 28. a bond formed between two nonmetals where the electrons are shared
- 29. the relationship between the mass and volume of a material
- 32. a solution that tastes sour, reacts with metals, and has a pH less than seven
- 33. the temperature at which a substance will change from liquid to gas
- 35. a bond formed between a metal and a nontmetal where electrons are transferred
- 37. the positively charged subatomic particle