MCAT Gen. Chem Ch. 3
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| Octet Rule | show 🗑
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| show | H, He, Li, Be, and B
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| show | Elements in Period 3 or greater
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| show | Eight electrons on each element
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| show | Formed via the transfer of one or more electrons form an element with a relatively-low ionization energy to an element with a relatively high electron affinity
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| Ionic Bonds Occur Between Elements With: | show 🗑
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| Cation | show 🗑
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| show | Negatively charged ion.
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| show | Formed by ionic compounds. These are large, organized arrays of ions.
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| Ionic Compounds Have Unique: | show 🗑
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| Ionic Compounds Tend To: | show 🗑
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| show | Have high melting points.
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| show | Formed via the sharing of electrons between two elements of similar electronegativities.
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| Bond Order | show 🗑
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| show | Bond strength increases, bond energy increases, and bond length decreases.
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| Covalent Bonds Can Be Categorized As: | show 🗑
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| Nonpolar Bonds | show 🗑
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| show | There is a small difference in electronegativity between the atoms (Delta EN < 0.5)
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| Polar Bonds | show 🗑
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| show | A partial negative charge
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| show | A partial positive charge
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| show | Result when a single atom provides both bonding electrons while the other atom does not contribute any
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| Coordinate Covalent Bonds Are Most Often Found In: | show 🗑
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| show | Chemical representation of an atom's valence electrons
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| Formal Charges | show 🗑
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| show | Represent all of the possible configurations of electrons (stable and unstable) that contribute to the overall structure
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| show | Predicts the 3-D molecular geometry of covalently bonded molecules
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| show | They reside closer to the nucleus.
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| show | Position of all electrons in a molecule, whether bonding or nonbonding.
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| show | Refers to the position of only the bonding pairs of electrons in a molecule.
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| show | Dependent on the dipole moment of each bond and the sum of the dipole moments in a molecular structure.
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| show | Nonpolar bonds, or polar bonds with dipole moments that cancel each other
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| show | Result of head-to-head bond overlap.
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| Pi Bonds | show 🗑
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| Intermolecular Forces | show 🗑
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| show | Weakest interactions but are present in all atoms.
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| show | London dispersion force increases
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| show | Occur between the oppositely charged ends of polar molecules, and are stronger than London forces.
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| show | Solid and liquid phases but are negligible in the gas phase due to the distance between particles
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| Hydrogen Bonds | show 🗑
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| Hydrogen Bonding Occurs When Hydrogen Is Bonded To: | show 🗑
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| Eq. 3.1: Dipole Moment | show 🗑
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| show | Formal Charge = V - N nonbonding - 1/2 N bonding. V = normal number of electrons in the atom's valence shell. N = number of electrons.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
SamB91
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