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8.4 Chemistry

chemistry

QuestionAnswer
Diatomic Molecule Is a molecule that has two atoms
Bond energy is the energy required to break a covalent bond between 2 atoms
Coordinate Covalent Bond in which one of the atoms provide both electrons in a shared pair
Dative Bond Another name for Coordinate Covalent Bond
Polyatomic ions A group of atoms that are contently bonded together and which carry an overall charge.
Resonance which there are more than one viable Lewis Dot structure.
Half bonds The true structure of a molecule that has resonance is that of an average or hybrid of all resonance structures. 2 atoms one electron. Weaker
Polar Covalent Bond in which are electrons are not shared equally
Non-Polar covalent Bond in which electrons are shared equally
incomplete octet the number of electrons surrounding the central atom in a stable molecule is less than 8
Odd electron many molecules have an odd number of valence electrons
Expanded octet Atoms of the second period cannot have more than 8 valence electrons around the center.
what are the 7 diatomic molecules H2,N2, O2,F2,Cl2,B2,I2
Polar vs Non-Polar Polar molecules are stronger with attracting. Polar molecules have high boiling points.
Give an example of a compound that makes a non polar Covalent bond CO2
Give an example of a compound that has resonance O3
Give an example of a compound that makes a polar Covalent bond H20
Give an example of a polyatomic ion NH4+
Give an example of a coordinate Covalent bond Carbon monoxide
Describe how triple covalent bonds are formed They have to share 3 pairs of electrons. N2
Describe how double covalent bonds are formed They have to share 2 electrons. C2, H4, Carbon needed to form a double bond to fill the octet rule.
describe how single covalent bonds are formed. When 2 orbitals with one electron over laps each other. H2 must have an opposite spin to share.
Contrast high and low bond energy High means that a bond is strong and molecules that contains that bond are likely to be stable and less reactive. low means more reactive compound will have bonds.
Contrast the bond energies of single, Double, triple bonds As it multiplies, each bond gets stronger.
Describe N2 It's very unreactive. All plants and animals need it. It can't be used because eof it's strong unreactive triple bond.
Created by: user-1975553
 

 



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