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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? 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
Created by: am8297