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Matter
| Question | Answer |
|---|---|
| Where are transition metals located on the periodic table? | In the middle and at the bottom |
| Where are the least reactive elements on the periodic table? | Far right hand |
| Where are the most reactive elements on the periodic table? | Far left hand |
| Where are the metalloids on the periodic table? | On the zigzag line |
| Where are the nonmetals on the periodic table? | Upper right area (and hydrogen) |
| Where are the metals on the periodic table? | On the left of the zigzag line |
| What is the smallest part of an element? | An atom |
| What is the smallest part of a compound? | A molecule |
| What does a period represent? | Energy levels; rows |
| What does a group represent? | Number of valence electrons; columns; also called a family |
| What is the definition of mass? | The amount of matter in an object |
| What is the Law of Conservation of Matter? | Matter is not created or destroyed |
| What is the definition of density? | How tightly compacted an object is |
| What is the formula for density? | Mass/volume Usually shows up as g/mL |
| What are the types of physical properties? | Texture, color, odor, melting point, boiling point, density, solubility, size, hardness, luster, phase of matter, mass, and conductivity |
| What are the types of chemical properties? | Reactivity, toxicity, and flammability |
| What is the definition of melting point? | The temperature at which a solid changes to a liquid; same temperature as the freezing point |
| What is the definition of combustibility? | How easily an object will burn |
| What is the definition of reactivity? | How easily an atom reacts or joins with another atom |
| What is the definition of boiling point? | The temperature at which a liquid turns into a gas (vapor) |
| What is a solute? | Something dissolved in something else |
| What is a solvent? | The liquid that the solute is dissolved in |
| What is a solution? | A mixture where the solute is distributed; all parts are the same |
| What is a homogeneous mixture? | All parts are the same; a pure substance |
| What is a heterogeneous mixture? | Parts are different; can be separated easily |
| What does the atomic number represent? | Number of protons (usually the number of electrons too) |
| What does the atomic mass represent? | Number of protons plus neutrons |
| What is a noble gas? | Located on the far right; they are the least reactive |
| How do you find the number of neutrons? | Round the atomic mass to the nearest whole number, then subtract the atomic number from it |
| What are reactants and products? | Reactants are what join together and products are the new substance created |
Created by:
MikaelaL
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