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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? | all the way to the right |
| 3. Where are the most reactive elements on the periodic table? | all the way to the left |
| 4. Where are the metalloids on the periodic table? | on the zigzag line |
| 5. Where are the nonmetals on the periodic table? | on the upper right |
| 6. Where are the metals on the periodic table? | on the left, and in the middle, also includes the transition metals |
| 7. What is the smallest part of an element? | an Atom |
| 8. What is the smallest part of a compound? | a molecule |
| 9. What does a period represent? | rows , and energy levels |
| 10. What does a group represent? | number of valence electrons, also called family's |
| 11. What is the definition of mass? | how much matter is in a object |
| 12. What is the Law of Conservation of Matter? | matter cannot be created nor destroyed |
| 13. What is the definition of density? | how tightly packed an object is |
| 14. What is the formula for density? | P=M/V, usually shows up as G/ML |
| 15. What are the types of physical properties? | texture, color, odor, density, size, hardness, phase of matter, mass, boiling point, melting point, solubility, luster, and conductivity |
| 16. What are the types of chemical properties? | toxicity, reactivity, and combustibility |
| 17. What is the definition of melting point? | the temperature were a solid will melt, it is the same temperature as the freezing point |
| 18. What is the definition of combustibility? | the measure of how easily a substance will burn |
| 19. What is the definition of reactivity? | how easily an atom has a chemical reaction |
| 20. What is the definition of boiling point? | the temperature were a liquid boils and turns into a vapor, or a liquid to a gas |
| 21. What is a solute? | substance dissolved into another substance |
| 22. What is a solvent? | what is dissolved in |
| 23. What is a solution? | a substance dissolved into another substance, a solute dissolved in a solvent |
| 24. What is a homogenous mixture? | a solid, liquid, or gas that can mix with the same type of component, every part of it is the same. Pure substance |
| 25. What is a heterogeneous mixture? | mixture of components that whose proportions differ through out the mixture, can easily be separated |
| 26. What does the atomic number represent? | the number of protons in a element |
| 27. What does the atomic mass represent? | number of protons and neutrons in an atom, usually the number of electrons |
| 28. What is a noble gas? | a group of chemical elements with similar properties, on the far right, least reactive |
| 29. How do you find the number of neutrons? | round the atomic mass to the nearest whole number, then subtract the number of protons from the mass number |
| 30. What are reactants and products? | reactants are the substances you have at the begining, and products are new substances |