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matter
| Question | Answer |
|---|---|
| Where are transition metals located on the periodic table? | at the bottom and the middle |
| 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? | on the stair case (or zigzag) |
| Where are the nonmetals on the periodic table? | upper right hand |
| Where are the metals on the periodic table? | to the left |
| What is the smallest part of an element? | the atom |
| What is the smallest part of a compound? | molecule |
| What does a period represent? | energy levels; rows |
| What does a group represent? | the number of valence electrons (aka family); columbs |
| What is the definition of mass? | is a measure of the amount of matter in an object |
| What is the Law of Conservation of Matter? | that matter cannot be created or destroyed in an isolated system |
| What is the definition of density? | how tightly packed something is |
| What is the formula for density? | density (p) is equal to mass (m) divided by volume (usually shows up as g/mL) |
| What are the types of physical properties? | appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, phase of matter,mass |
| What are the types of chemical properties? | Reactivity, Toxicity, Flammability |
| What is the definition of melting point? | the temperature at which a given solid will melt. (same temp as the freezing point) |
| What is the definition of combustibility? | Combustibility is a measure of how easily a substance will set on fire, through fire or combustion. |
| What is the definition of reactivity? | how easily an atom reacts to something |
| What is the definition of boiling point? | the temperature at which a liquid boils and turns to vapor. |
| What is a solute? | A solute is a substance dissolved in another substance. |
| What is a solvent? | A solvent is a liquid that dissolves a solid |
| What is a solution? | a solution is a salute dissolved in a solvent |
| What is a homogenous mixture? | A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same through out the whole thing (pure substance) |
| What is a heterogeneous mixture? | a heterogeneous mixture has components that the parts aren't the same and can be easily separated |
| What does the atomic number represent? | represents the number of protons |
| What does the atomic mass represent? | is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. |
| What is a noble gas? | far right and its least reactive |
| How do you find the number of neutrons? | round the atomic mass to the nearest whole number and then subtract the atomic number from the largest rounded number |
| What are reactants and products? | usually the reactants are what you have at the beginning products are the new substance |
Created by:
Ewizabef
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