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Matter

QuestionAnswer
Where are transition metals located on the periodic table? In the middle and the bottom
Where are the least reactive elements on the periodic table? The very far right
Where are the most reactive elements on the periodic table? The very far left
Where are the nonmetals on the periodic table? On the zigzag
Where are the metals on the periodic table? Left
What is the smallest part of an element? Atom
What is the smallest part of a compound? Molecule
What does a period represent? Rows of elements that are grouped in rows and it represents the energy levels
What does a group represent? Columns of elements that are grouped in columns because they have the same number of valence electrons; also called a family
What is the definition of mass? Measure of matter in an object
What is the Law of Conservation of Matter? Matter cannot be created nor destroyed
What is the definition of density? How compact/tightly packed an object is
What is the formula for density? Density = mass divided by volume and usually shows up as g/mL
What are the types of physical properties? Density, Melting Point, and Boiling Point, color, odor, hardness, luster, phase of matter, mass, solubility, conductivity
What are the types of chemical properties? Reactivity, combustibility, and toxicity
What is the definition of melting point? The temperature that an object will begin to melt at/solid to liquid, same temperature as the freezing point
What is the definition of combustibility? How easy an object is to be set on fire/how easy it is burn
What is the definition of reactivity? How easy an object is able to react with other things/easy to have a chemical reaction
What is the definition of boiling point? The temperature that an object will begin to boil at/liquid to gas
What is a solute? The object that gets dissolved in another substance
What is a solvent? What the solute is dissolved in
What is a solution? Solute dissolved in a solvent
What is a homogeneous mixture? A mixture that has the same uniform appearance and composition throughout / pure substance
What is a heterogeneous mixture? A mixture that consists of different phases and isn't the same throughout, parts are not the same, and parts can be easily separated.
What does the atomic number represent? The number of protons in an element, usually number of electrons, eh idk
What does the atomic mass represent? The mass of an atom in an element or number of protons plus electrons
What is a noble gas? Least reactive gases on the last group on the very far right on the periodic table
How do you find the number of neutrons? Subtract the number of protons from the atomic number or round atomic number to the nearest whole number and do the thing before
What are reactants and products? Reactants are substances that are changed into other substances and products are the end result of the reactants being changed
Where are the nonmetals on the periodic table? On the right
Created by: Lucas.pacito