2.1 The Nature of Matter

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Terms in this set (...)

What three subatomic particles make up atoms?
Protons, Neutrons, and Electrons
How are all of the isotopes of an element similar?
They have the same number of electrons

All isotopes of an element have the same chemical properties
In what ways do compounds differ from their component elements?
The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed.
What are the main types of chemical bonds?
Ionic and Covalent
Atom
basic unit of matter
Atoms are made up of
protons
neutrons
electrons
Nucleus
the center of an atom, which contains the protons and neutrons
Electron
negatively charged particle

located in the space surrounding the nucleus
Element
pure substance that consists entirely of one type of atom
Isotope
one of several forms of a single element, which contains the same number of protons but different numbers of neutrons
Compound
substance formed by the chemical combination of 3 or more elements in definite proportions
Ionic Bond
chemical bond formed when one or more electrons are transferred from one atom to another
Ion
atom that has a positive or negative charge
Covalent Bond
type of bond between atoms in which the electrons are shared
Molecule
smallest unit of most compounds that displays all the properties of that compound
Solids
have volume and a shape
Liquids
have volume and no definite shape
Gases
no definite volume and no definite shape
Hydrogen Bond
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Cohesion
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Adhesion
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Mixture
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Solution
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Solute
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Solvent
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Suspension
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pH Scale
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Acid
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Base
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Buffer
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Monomer
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Polymer
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Carbohydrate
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Monosaccharide
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Lipid
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Nucleic Acid
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Nucleotide
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Protein
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Amino Acid
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Chemical Reaction
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Reactant
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Product
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Activation Energy
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Catalyst
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Enzyme
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Substrate
reactant of an enzyme-catalyzed reaction