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CHEM 112 Lecture Notes - Lecture 5: Linus Pauling, Lone Pair, Dative Case

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amaranthbeaver15

26 Aug 2016

School

Queen's University

Department

Course

Professor

Jeffery Lalonde

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Document Summary

The energy that required to remove an electron. The lone pair will repel the bond pair. Some atoms can share more than one pair of electrons to from a multiple bond -- the desired outcome is a full outer shell. A line connecting the atoms concerned is how covalent bonds are depicted. Sometime, one atom can supply both the electron to a covalent bond. The oxonium ion forms when acids are in solution. Breaking the octet rule the standard 8 electrons in a dull outer shell scenario my not always be possible. There may not ve enough electrons to reach a full octet. More than 4 electrons may pair up on bonding. Boron is a metalloid it has both metal and non-metal properties. Expansion of the octet occurs in some elements in group 5,6 and 7. These elements can make 5,6, and 7 covalent bonds respectively under certain conditions, and depending what they bond with.

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Related Questions

How do you answer 1-4?

Physical Constants R-00821 L.atm rnol. K: 1 atm = 760 Torr; h-6626 x 10". Js; c-3.00 x 10e mis Multiple Choice Question-4 points each. Circle the correct choice. 1. How many orbitals are there in the n - 3 shell? )3 b)6 )9 d) 12 e) none of the preceding choices 2. Which of the following is not a valid set of four quantum numbers to describe an electron in an atom? 3. Which pair of elements would you expect to exhibit the most similar physical and chemical properties? a) As and Se b) Na and Cl c) As and Sb d) B and Be 4) The number of unpaired electrons in the ground state of an atom of Co is.. (A) one (B) three (C) five (D) seven (E) none of the preceding choices S. Which of the following processes is exothermic? a) lonization of a sodium atom b) Formation of gaseous chlorine atoms from Cl, (g) c) Breaking apart of NaC1 (s) into ions d)Addition of an electron to a chlorine atom 6. Which of the following bonds is the most polar? a) N-O b)O-F e) B-O d)S-o e) all are equally polar At what temperature (in C) will 25.0 g of carbon dioxide (at 1,00 atm) occupy 21.5 L? 188Â°C b) 461Â°C c) -263Â°C d)-270Â°C e)113Â°C How many times more rapidly will hydrogen (H2) gas effuse through a pinhole than will deuterium (D ) gas? Deuterium is an isotope of hydrogen with a molecular mass of 4.0 g/mole. (A) V2 (B) 2 (C)2v2 (D) 4 9. Which of the following arrangements from lowest to highest in first ionization energies is correct ? 10. In which of the following compounds obeys the octet rule? 1. The bright spectral lines observed in the emission spectrum of a flame or gas discharge tube are due to a) XeF b) BF, c) Cio d) so e) none of the preceding choicees a) the absorption of light at specific wavelengths b) the formation of an excited state of atoms c) the transition of an atom from an excited state to a lower energy state d) the change from anti-parallel to parallel electron spins in an atom 2. A one-liter container is filled with one mole of hydrogen at 25 Â°C. A second one-liter container is filled with one mole f oxygen at 25 Â°C. Comparing the pressure of the hydrogen to the oxygen, the ratio will be Fro n Bond Dissociation Enthalpies: AHD (CI-CI)-243 kJrnolAMD (F-F )ä¸159 klinol; lculate the enthalpy, AH, for the chemical reaction: Cl: (g)+F: (g) 2CIF(R) )-147 kJ (b)-108 kJ (c)+171 kJ (d) +912 k AHD (CI F)-255 kJ mol ;