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Matter
| Question | Answer |
|---|---|
| Where are transition metals located on the periodic table? | its in the middle and at the bottom |
| Where are the most reactive elements on the periodic table? | far left hand column |
| Where are the metalloids on the periodic table? | along the zig zag line |
| Where are the nonmetals on the periodic table? | on the far right plus hydrogen |
| Where are the metals on the periodic table? | everywhere on the left of the table except the for hydrogen |
| 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. (row) |
| What does a group represent? | number of valence electrons (also called a family) Its a column |
| What is the definition of mass? | the amount of matter in a object. |
| What is the Law of Conservation of Matter? | matter can be neither created nor destroyed |
| What is the definition of density? | how tightly packed something is |
| What is the formula for density? | mass divided by volume |
| What are the types of physical properties? | color, odor, size, hardness, luster, phase of matter, mass, density, boiling point, melting point, solubility, conductivity |
| What are the types of chemical properties? | reactivity, combustibility, toxicity |
| What is the definition of melting point? | temperature at which a substance changes from a solid ti a liquid; the same temperature as the freezing point |
| What is the definition of combustibility? | the ability a substance has to burn |
| What is the definition of reactivity? | how easily an atom has a chemical reaction with another atom |
| What is the definition of boiling point? | the point at which a substance changes from a liquid to a gas (vapor) |
| What is a solute? | a substance that is dissolved in another substance (suger) |
| What is a solvent? | the liquid in which a solute is dissolved (water) |
| What is a solution? | when substances are evenly mixed togehter |
| What is a homogenous mixture? | all parts are the same |
| What is a heterogeneous mixture? | parts that are not the same |
| What does the atomic number represent? | number of protons and electrons |
| What does the atomic mass represent? | the number of protons + neutrons |
| What is a noble gas? | a group of elements that are particularly non reactive (far right) |
| How do you find the number of neutrons? | the mass number by rounding the atomic mass to the nearest whole number. subtract the atomic number from this # |
| What are reactants and products? | the substances you have at the beginning are reactants. then when the reactants are complete you have a new substance which is called a product. |
| where are the least reactive elements on the periodic table | on the far right of the table |
Created by:
AlanaM23
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