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Matter
| Question | Answer |
|---|---|
| 1. Where are transition metals located on the periodic table? | In the Middle and at the bottom. |
| 2. Where are the least reactive elements on the periodic table? | The far right |
| 3. Where are the most reactive elements on the periodic table? | The far left |
| 4. Where are the metalloids on the periodic table? | On the zigzag line |
| 5. Where are the nonmetals on the periodic table? | The far right and Hydrogen |
| 6. Where are the metals on the periodic table? | The far left of the zigzag. |
| 7. What is the smallest part of an element? | atom |
| 8. What is the smallest part of a compound? | molocule |
| 9. What does a period represent? | They are the vertical line on the Periodic Table and, energy levels. |
| 10. What does a group represent? | They are the horizontal line in Periodic Table, and number of valance electrons also called family. |
| 11. What is the definition of mass? | How much mater something has. |
| 12. What is the Law of Conservation of Matter? | Matter cannot be created or destroyed |
| 13. What is the definition of density? | How tightly pack something is. |
| 14. What is the formula for density? | Mass/Volume /grams per mL |
| 15. What are the types of physical properties? | appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, |
| 16. What are the types of chemical properties? | Reactivity, Toxicity, Coordination, Flammability, Enthalpy, and Heat |
| 17. What is the definition of melting point? | solid to liquid, It is the same temp. as the freezing point; |
| 18. What is the definition of combustibility? | The ablility to burn |
| 19. What is the definition of reactivity? | The state or power of being reactive or the degree to which a thing is reactive. |
| 20. What is the definition of boiling point? | Liquid to gas. |
| 21. What is a solute? | A substance that is dissolved in another substance |
| 22. What is a solvent? | The liquid in which a solute is dissolved |
| 23. What is a solution? | Substance in a mixture are evenly distributed; all parts are the same. |
| 24. What is a homogenous mixture? | A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample. pure substance |
| 25. What is a heterogeneous mixture? | A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts. can be easily seperated |
| 26. What does the atomic number represent? | How many protons or the element has. |
| 27. What does the atomic mass represent? | Protons plus neutrons |
| 28. What is a noble gas? | The least reactive material |
| 29. How do you find the number of neutrons? | So, to determine the number of neutrons in atom, we only have to subtract the number of protons from the mass number. |
| 30. What are reactants and products? | In a chemical reaction, substances called reactants are changed into other substances |