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Matter
| Question | Answer |
|---|---|
| Where are transition metals located on the periodic table? | In the middle and bottom |
| Where are the least reactive elements on the periodic table? | Far right column |
| Where are the most reactive elements on the periodic table? | on the far left |
| Where are the metalloids on the periodic table? | To the right. |
| Where are the nonmetals on the periodic table? | Far upper right and Hydrogen |
| Where are the metals on the periodic table? | To the left of the zigzag line |
| What is the smallest part of an element? | An atom of that element |
| What is the smallest part of a compound? | molecule |
| What does a period represent? | same energy level; rows |
| What does a group represent? | same number of valence electrons (also called a family) ; columns |
| What is the definition of mass? | how much matter is in an object |
| What is the Law of Conservation of Matter? | Energy/Matter cannot be created nor destroyed |
| What is the definition of density? | How tightly packed something is; mass/volume |
| What is the formula for density? | mass/volume ( usually shows up as g/mL ) |
| What are the types of physical properties? | Density, Melting Point, Boiling Point, color, phase of matter, conductivity, size, hardness, odor, mass, luster, solubility |
| What are the types of chemical properties? | Reactivity, Combustibility, Toxicity |
| What is the definition of melting point? | temp. at which a substance changes from a solid to a liquid; the same temperature as the freezing point |
| What is the definition of combustibility? | how easily something burns |
| What is the definition of reactivity? | How easily an atom a chemical reaction |
| What is the definition of boiling point? | The point in which an object boils |
| What is a solute? | a substance that is dissolved in another substance |
| What is a solvent? | The liquid in which a solute is dissolved |
| What is a solution? | Substances in a mixture are evenly distributed; all parts are the same; a solute dissolved in a solvent |
| What is a homogenous mixture? | A mixture that has the same combination of components (parts) throughout the entire mixture; a pure substance |
| What is a heterogeneous mixture? | A mixture that is not the same throughout; can be easily separated |
| What does the atomic number represent? | number of protons |
| What does the atomic mass represent? | The umber of protons and neutrons in an elements atom |
| What is a noble gas? | Last column of the periodic table that do not associate well with other elements |
| How do you find the number of neutrons? | Round the atomic mass to the nearest whole number ( mass number) an then subtract the atomic number from this number |
| What are reactants and products? | Reactants are substances in a chemical reaction that change into a new substance called products Reactants- beginning Products- new substance |
Created by:
Khailand
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