CHEM 110 Lecture Notes - Valence Bond Theory, Homonuclear Molecule, Unpaired Electron

14) Which statement regarding a bond between two carbon atoms is TRUE? ginofhighelectrondensity liesalorgthebondaxisconnecting thenucleiofthe two atoms b. It can be described by the overlap of sp hybrid orbitals from each atom c. It can be described by the overlap of sp hybrid orbitals from each atom. d. It can be described by the overlap of a p atomic orbital from one atom with an spi hybrid orbital from the other atom. e. It can be described by the overlap of p atomic orbitals from each atom 15) A covalent bond results when a. electrons are transferred from one atom to another atom b. atoms pool their electrons to form a "sea" of electrons. c. atoms have outer electrons with the same principal quantum number d. electrons are shared between a pair of atoms e. an atom has eight valence electrons. 16) How many unpaired electrons does nickel (Ni) have? c.2 d.8 17) Which arrangement is in the correct order of increasing radii? a. Cs

7416861 Secure https://session Ln2 Obital Overlap: Sigma and Pi Bonding e previous rbital Overlap: Sigma and Pi Bonding Part A When two atoms form a single covalent bond, two orbitals (one from each atom) overlap such that the electron pair can be in both orbitais simultaneously Double and triple bonds invoive the sharing of multiple electron pairs. Each additional electron pair requires the overlap of another set of orbitals Aset of ovenapping ort tals is called a σ bond (signa bond) if the overlapishead-on and a π bond (pi bond) i the overlap is sideways How many σ and π bonds are present in a molecto ofcumulene? Pam) Enter the number of σ bonds followed by the number of π bonds separated by a com Hints Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Part B What types of orbital overlap occur in oumulene? Check all that apply of 1 ./sp2 overlap /s overlap s/sp overlap sp/sp overlap Cumulene MacBook Air 20 F6 0

It the z-axis is the internuclear axis between two atoms, determine the number and types fmolecular orbitals that can be formed if two 2p, atomic orbitals overtap and two 2p, atomic orbitals overiap. in each case, draw simple ilustrations of the molecular orbitals formed and orbitals, and the lighter gray regions are the nucleus of an arom.) specify the relative probablity of finding electrons on the internucear ais. (Select all that apply, In the images, the darker pray of fiding electrons on (a) two 2p, atomic orbitals overlap When two 2p, atomic orbitals overlap, Sigma MO and relatively low for the antibonding sigma Ho. sig.. molecular orbitals (MOs) are formed. The probabity or noing electrons on the iennear as a . mnayng , -te the board