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26 Cards in this Set
- Front
- Back
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Chemistry
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The science that deal with the structure of matter
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Matter
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Anything that takes up space and has mass
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Mass
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The amount of material in matter--determines the weight of an object
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Subatomic Particle
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Buildinng blocks of atoms
Protons, Neutrons, Electrons |
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Protons
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Postive charge, found in nucleus of atom
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Neutron
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Neutral, found in nucleus of atom
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Electrons
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Negative, found orbiting nuclues.
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Mass of an atom
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Determined by the number of protons and neutron in the nucleus
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Atomic Structure
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Atomic Number, Protons in the atoms.
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Electron Cloud
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Electrons traveling around nucleus at high speed
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Electron Shell
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A 2D diagram of electron cloud
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Electrical Force
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Negatively Charged Electron is attracted to positively charged proton in nuclues
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Element
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Pure Substance composed of one type of atoms
Uniform Composition Throughout |
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Atomic Weight
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The actual mass of an atom
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Isotope
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An atom of an element that has the same number of protons and electrons but different number of neutrons
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Energy levels
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1st level, max 2
2nd and up, max 8 electrons |
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Valence Shell
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Outermost energy level
Where the electrons go. |
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Chemical Bonds
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Elements with unfilled valence shells
Interaction that hold atoms together once a reaction has ended. Ionic bonds Covalent bonds |
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Ionic Bonds
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Bonds that from cation, anions
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Electron Donor
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Loses one of more electron and become a cation with a positive charge.
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Electron Acceptor
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Gains same electrons and become an anion with a negative charge.
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Covalent Bonds
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Atoms completing their valence shells by sharirign electrons
Single, shares one pair Double, Shares two pairs Triple, shares three pairs |
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acidic
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more hydrogen than hydroxide
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basic or alkaline
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more hydroxide than hydrogen
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acid
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solute that dissociates in solutiona dn releases hydrogen ions
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bases
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a solute that removes hydrogen ions from a solution
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