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Matter

QuestionAnswer
Where are transition metals located on the periodic table? In the middle of the table from group 3 to 12 at the bottom
Where are the least reactive elements on the periodic table? On the far right side of the table
Where are the most reactive elements on the periodic table? On the far left side of the table
Where are the metalloids on the periodic table? On the right of the table on the zigzag line
Where are the nonmetals on the periodic table? upper right of periodic table (and hydrogen)
Where are the metals on the periodic table? On the left side of the zigzag
What is the smallest part of an element? The elements atom
What is the smallest part of a compound? molecule
What does a period represent? Energy levels; rows
What does a group represent? Valence electrons (also called a family); columns
What is the definition of mass? The amount of matter in an object
What is the Law of Conservation of Matter? Matter can neither be created nor destroyed
What is the definition of density? How tightly packed something is
What is the formula for density? Mass (g) divided by volume (cm3) (usually shows up as g/mL)
What are the types of physical properties? Color, Phase (State), Mass, Density, Odor, Melting Point, Boiling Point size, luster, hardness, solubility, conductivity
What are the types of chemical properties? Flammability (combustibility), Toxicity, and Reactivity
What is the definition of melting point? When an object goes from a solid to a 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 an object combines with something else
What is the definition of boiling point? When an object goes from a liquid to a gas (vapor)
What is a solute? A substance that is dissolved in another object
What is a solvent? The liquid in which a solute dissolves in
What is a solution? Substances in a mixture are evenly distributed; all parts are the same ; solute dissolved in a solvent
What is a homogenous mixture? A mixture that has the same combination of components throughout the entire mixture (pure substance)
What is a heterogeneous mixture? A mixture that is not the same throughout; can be easily separated
What does the atomic number represent? The number of protons (Also, usually the number of electrons)
What does the atomic mass represent? Protons and neutrons in the element
What is a noble gas? Located on the far right hand column a gas that is not 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 Atomic mass
What are reactants and products? The substances you have in the beginning of a chemical equation are called reactants and products are what you have after the reaction is complete
Created by: DanielleG18