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matter

QuestionAnswer
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