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Matter

QuestionAnswer
1. Where are transition metals located on the periodic table? In the middle and on bottom
2. Where are the least reactive elements on the periodic table? Far right column
3. Where are the most reactive elements on the periodic table? Far left
4. Where are the metalloids on the periodic table? On the zigzag line
5. Where are the nonmetals on the periodic table? Upper right and hydrogen
6. Where are the metals on the periodic table? To the left of the zigzag
7. What is the smallest part of an element? Atom
8. What is the smallest part of a compound? Molecule
9. What does a period represent? Energy levels; rows
10. What does a group represent? How many valence electrons there are, columns or families
11. What is the definition of mass? How much matter an object has
12. What is the Law of Conservation of Matter? No matter is created or destroyed
13. What is the definition of density? How tightly packed an object is
14. What is the formula for density? mass/volume (g/mL)
15. What are the types of physical properties? Color, density, volume, mass, boiling point, melting point, odor, size, hardness, luster, phase of matter, solubility, conductivity
16. What are the types of chemical properties? Toxicity, flammability, and reactivity
17. What is the definition of melting point? The temperature at which a substance turns from solid to liquid; same temp as freezing point
18. What is the definition of combustibility? How flammable a substance is
19. What is the definition of reactivity? How reactive a substance is
20. What is the definition of boiling point? The point at which a substance transforms from a liquid to a gas
21. What is a solute? The substance that is dissolved in a solution
22. What is a solvent? The substance that dissolves the solute in a solution
23. What is a solution? Solute and solvent, homogeneous
24. What is a homogenous mixture? A mixture where all parts are uniformly distributed; pure substance
25. What is a heterogeneous mixture? A mixture where some parts are more uniform than others; can be easily separated
26. What does the atomic number represent? How many protons are in an element
27. What does the atomic mass represent? Protons in an element + neutrons
28. What is a noble gas? Gas elements on the far right of the periodic table that are very unreactive
29. How do you find the number of neutrons? Atomic mass - atomic number
30. What are reactants and products? The before and after in a chemical reaction
Created by: owenflegal23