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Matter
mAtTEr
| Question | Answer |
|---|---|
| Where are transition metals located on the periodic table? | In the middle & the bottom |
| Where are the least reactive elements on the periodic table? | Far right |
| Where are the most reactive elements on the periodic table? | Far left |
| Where are the metalloids on the periodic table? | The thirteenth group, making a staircase |
| Where are the nonmetals on the periodic table? | Far upper right, & hydrogen |
| Where are the metals on the periodic table? | The left side of metalloids |
| What is the smallest part of an element? | The atom |
| What is the smallest part of a compound? | The molecule |
| What does a period represent? | Energy levels; rows |
| What does a group represent? | Number of valence electrons, (group is also called family, in columns) |
| What is the definition of mass? | Amount of matter in an object |
| What is the Law of Conservation of Matter? | Matter is neither created nor destroyed |
| What is the definition of density? | How tightly packed an object is |
| What is the formula for density? | mass divided by volume (usually shows up as grams per milileter g/mL) |
| What are the types of physical properties? | Color, phase, mass, density, odor, melting point, boiling point, hardness, luster (shiny), solubility (how easily it dissolves), and conductivity |
| What are the types of chemical properties? | Combustibility, toxicity, and reactivity |
| What is the definition of melting point? | The temperature at which something goes from being solid to liquid (same TEMPERATURE as the freezing point) |
| What is the definition of combustibility? | The ability to burn |
| What is the definition of reactivity? | How easily a chemical is combined |
| What is the definition of boiling point? | The temperature at which something goes from liquid to gas |
| What is a solute? | Substance dissolved in another substance |
| What is a solvent? | Substance that the solute is dissolved in |
| What is a solution? | The outcome of the solvent and solute, when the substances in the mixture are easily distributed |
| What is a homogeneous mixture? | A mixture that has the same components throughout the substance (pure, Ex. Salt) |
| What is a heterogeneous mixture? | A mixture that does not have the same components throughout the substance, ( can be easily separated, Ex. sand + water) |
| What does the atomic number represent? | Protons in an element (also the neutrons, but the protons) |
| What does the atomic mass represent? | Protons and neutrons in an element |
| What is a noble gas? | Gasses that do not combine with other elements (least reactive; far right) |
| How do you find the number of neutrons? | Round atomic mass to nearest whole number, then subtract atomic number |
| What are reactants and products? | Reactants (left) are what is combined, products (right) are the new substances |
Created by:
ChimChim
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