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Matter
| Question | Answer |
|---|---|
| 1. Where are transition metals located on the periodic table? | In the middle and the bottom |
| 2. Where are the least reactive elements on the periodic table? | Far right , last group on the periodic table (Noble gases) |
| 3. Where are the most reactive elements on the periodic table? | Far left (Alkaline earth metals) |
| 4. Where are the metalloids on the periodic table? | On the zigzag line (between metals and nonmetals) |
| 5. Where are the nonmetals on the periodic table? | Upper right hand area of the periodic table |
| 6. Where are the metals on the periodic table? | Left side of the table |
| 7. What is the smallest part of an element? | A atom |
| 8. What is the smallest part of a compound? | A molecule |
| 9. What does a period represent? | Energy levels: rows |
| 10. What does a group represent? | Number of valance electrons(also called a family); colums |
| 11. What is the definition of mass? | The amount of matter in a object |
| 12. What is the Law of Conservation of Matter? | Matter is neither created nor destroyed |
| 13. What is the definition of density? | How tightly packed something is |
| 14. What is the formula for density? | Mass/Volume=Density (usually shows up as grams per milliliter g/mL) |
| 15. What are the types of physical properties? | Texture, size, color, odor, melting point, boiling point, freezing point, phase of matter, solubility, conductivity luster and density |
| 16. What are the types of chemical properties? | Reactivity, toxicity, flammability |
| 17. What is the definition of melting point? | The temperature at which a substance changes from a solid to a liquid; the same temp as the freezing point |
| 18. What is the definition of combustibility? | How easy something will set on fire |
| 19. What is the definition of reactivity? | How easily an atom has a chemical reaction with another atom |
| 20. What is the definition of boiling point? | The temperature at which a liquid turns into a gas |
| 21. What is a solute? | The substance that dissolves in a mixture |
| 22. What is a solvent? | A substance that can dissolve the other substance in a mixture |
| 23. What is a solution? | Two substances that are equally mixed together, all parts are the same ; solute dissolved in a solvent |
| 24. What is a homogenous mixture? | Mixture that has the same combination of parts throughout the mixture; pure substance |
| 25. What is a heterogeneous mixture? | A mixture that is not that same throughout, different parts : easily separated |
| 26. What does the atomic number represent? | The number of protons (also usually number of electrons) |
| 27. What does the atomic mass represent? | The number of protons+neutrons |
| 28. What is a noble gas? | Located on the far right; least reactive |
| 29. How do you find the number of neutrons? | Round the atomic mass to the nearest whole number(mass number), and then subtract the atomic number from this number |
| 30. What are reactants and products? | A reactant is when a substance undergo a chemical change; what you have at the beginning and add together. A product is the result or what is left from the chemical change |
Created by:
ArielN
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