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Chemical Interactions (8th)
Vocabulary from the chemistry unit
Smallest part of an element; made up of protons, neutrons, and electrons
Total number of protons and neutrons in an atom
Number of protons or electrons in an atom
Shows the local of ALL the electrons in an atom; resembles a "bulls-eye" with the different energy levels
Represents a chemical reaction using chemical formulas and coefficients
Represents a chemical compound (with symbols and subscripts)
Letter or letters that are used to represent the elements
Pure substance made of two or more elements that are chemical combined
Conservation of Mass
Law that states the total mass of the reactants must equal the total mass of the products
Bond between two elements that share electrons
Subatomic particle with a negative charge; found in energy levels around the nucleus
Areas around the nucleus that contains electrons; first can hold 2, second can hold 8, and the third can hold up to 18
Groups or columns of elements in the periodic table with similar properties
An atom that has lost or gained an electron
Bond between two ions that results from a transfer of electrons
Atoms of the same element with different numbers of neutrons
Diagram that show the number of VALENCE electrons in an atom; includes the chemical symbol with dots as valence electrons
Anything that has mass and volume
Elements found on the left-hand side of the periodic table, such as Na, Mg, and Au
Elements located along the zig-zag that have properties of metals and nonmetals
Two or more substances mixed together, but are not chemically combined
Molecules that are linked together to make polymers
Subatomic particle with no charge; found in the nucleus
Elements found on the right-hand side of the periodic table, such as H, O, and Cl
Center of the atom
Chart that shows the elements arranged in families and periods based on their properties and atomic structure
Chemicals that are made from petroleum; used to make slime and plastics
Created by linking monomers together to make a chain; proteins, DNA, and slime
Substances that are produced by a chemical reaction
Subatomic particle with a positive charge; found in the nucleus
Substances that enter into a chemical reactions
The speed at which a chemical reaction takes place
Electrons in the outermost energy level
Particles that make up protons and neutrons
The number of electrons an atom may gain or lose; also known as it's "charge"
Substance that is dissolved in a solution
Substance that does the dissolving in a solution
Homogeneous mixture in which one substance is dissolved in another
A mixture made up of a liquid and particles that (because of their large size) remain suspended rather than dissolved in that liquid.
A mixture in which particles can be seen and easily separated by settling or filtration
Type of mixture that appears the same throughout
Type of mixture in which the individual components are visible
A solid in which the atoms are arranged in a pattern that repeats again and again
A group of atoms held together by covalent bonds.
Number that shows the number of atoms of each element in a compound
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
A mixture of two or more metals