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Matter

QuestionAnswer
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? to the far right hand
3. Where are the most reactive elements on the periodic table? to the far left hand
4. Where are the metalloids on the periodic table? at the zigzag line
5. Where are the nonmetals on the periodic table? upper right area + hydrogen
6. Where are the metals on the periodic table? from the left of the zigzag
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 - Left to Right/energy levels
10. What does a group represent? Column - Up to Down/Number of valence electrons(family)
11. What is the definition of mass? The amount of matter in an object
12. What is the Law of Conservation of Matter? Matter can't be created nor destroyed
13. What is the definition of density? How tightly packed the atoms in a object are
14. What is the formula for density? mass/volume (usually shows up as g/mL)
15. What are the types of physical properties? Color, Odor, Size, Hardness, Luster, Phase of Matter, Mass, Density, Boiling point, Melting point, Solubility, and Conductivity.
16. What are the types of chemical properties? Reactivity, Combustibility, and Toxicity
17. What is the definition of melting point? the point at which a substance changes from a solid to a liquid; the same temperature as the freezing point.
18. What is the definition of combustibility? the ability a substance has to burn;
19. What is the definition of reactivity? how easily an atom has a chemical reaction with another element.
20. What is the definition of boiling point? the point at which a substance changes from a liquid to a gas
21. What is a solute? a substance that is dissolved into another substance
22. What is a solvent? is the substances that devolves a solute
23. What is a solution? substance in a mixture are evenly distributed; a solute dissolved in a solvent
24. What is a homogenous mixture? a mixture that has the same proportions of its components throughout any given sample; pure substance
25. What is a heterogeneous mixture? A mixture that is not uniform in composition; can be easily separated
26. What does the atomic number represent? The amount of protons in a element
27. What does the atomic mass represent? number of neutrons + protons
28. What is a noble gas? Far right and extremely low reaction rates
29. How do you find the number of neutrons? you have to subtract the number of protons from the mass number
30. What are reactants and products? usually the reactants are on the right while products are on the left.
Created by: ltapley