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Matter

QuestionAnswer
Where are transition metals located on the periodic table? In the middle and at the bottom
Where are the least reactive elements on the periodic table? On the far right of the table
Where are the most reactive elements on the periodic table? To the far left on the table
Where are the metalloids on the periodic table? Along the zig-zag line
Where are the nonmetals on the periodic table? To the right of the metalloids and hydrogen
Where are the metals on the periodic table? On the left
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 level/row
What does a group represent? Number of valance electrons (also called a family)
What is the definition of mass? The amount of matter in an object
What is the Law of Conservation of Matter? Matter can't be created nor destroyed
What is the definition of density? How tightly packed something is
What is the formula for density? Mass / volume
What are the types of physical properties? Color, odor, size, hardness, luster, phase of matter, mass, density, boiling point, melting point, solubility, and conductivity
What are the types of chemical properties? Reactivity, combustibility (flammability), toxicity
What is the definition of melting point? When a substance changes from a solid to 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? A substance changing from a liquid to gas (vapor)
What is a solute? Substance has dissolving in another substance
What is a solvent? A liquid that becomes dissolved
What is a solution? When two substances are evenly mixed together
What is a homogenous mixture? All parts are the same
What is a heterogeneous mixture? A word for both solvent and solute when not mixed together; parts are not the same
What does the atomic number represent? The number of protons
What does the atomic mass represent? Number of protons plus neutrons
What is a noble gas? An element that are partially nonreactive; on the far right
How do you find the number of neutrons? atomic mass (rounded) - atomic number
What are reactants and products? The substance that you have at the beginning is called the reactant, and the substance you have at the end is called the product.
Created by: Kayla4265
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