Chem 162 (100% Errorless Answers)

Axial lone pairs correct answers Lies on axis of molecule where is srongly repels the electron pairs in the three equatorial bones Equatorial lone pair correct answers Lies on molecule's equator, where is strongly repels electron pairs in the two axial bonds sigma bond correct answers all single covalent bonds. A bond formed when two atomic orbitals combine to form a molecular orbital that is cylindrically symmetrical around the axis connecting the two atomic nuclei Head on overlap of hybridized orbitals or atomic orbital of hydrogen pi bond correct answers Orbitals are perpendicular to the inter nuclear axis. a bond that is formed when parallel orbitals overlap to share electrons. Side by side overlap. Prevents free rotation about that axis. Parallel overlap of p orbitals. Sigma or pi: single bond correct answers Sigma Sigma or pi: double bond correct answers One sigma + one pi Sigma or pi: triple bond correct answers One sigma + two pi hybrid orbitals correct answers orbitals of equal energy produced by the combination of two or more orbitals on the same atom. Amplitudes concentrated on one side of the nucleus, allowing hybrid orbitals to overlap more effectively than other orbitals and form stronger bonds What does this notation mean: (C2sp^3,H1s) correct answers A sigma bond formed by spin-pairing a carbon electron in a hybridized sp^3 orbital (from 2s and 2p orbitals) and a hydrogen electron in the 1s orbital Whenever an atom in a molecule has a tetrahedral electron arrangement, we say it is ____ correct answers sp^3 hybridized sp^3 hybrids correct answers Formed from one s-orbital and three p-orbitals The promotion of electrons will occur if, overall, it leads to ____ correct answers The lowering of energy by permitting formation of more bonds. Ex: possible in carbon and boron to form more bonds but not possible in nitrogen, oxygen, or fluorine. What about methane makes us need the hybridization of orbitals concept? correct answers Carbon has configuration [He] 2s2 2px1 2py1 with four valence electrons, but with 2s2 we would assume two of the valence electrons are already paired, leaving only 2 for bonding. One electron is this promoted to an empty 2p-orbital, making [He] 2s1 2px1 2py1 2pz1. Thereby, it can form 4 bonds after promotion of an electron.