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Chemistry chapter 6

Chemistry is awesome!

QuestionAnswer
An attractive force that holds atoms together and is produced by transferring or sharing electrons?? Chemical Bond
As electrons move to a lower level they? Releases energy
An atom tends to gain,lose or share electrons until the outer level S and P orbitals are filled with 8 electrons? (Noble Gas configuration) Octet rule
Exceptions to the octet rule? elements 1-4. always try to have 2 electrons
In transition metals d,f electrons are involved in bonding? true
Bonds formed by sharing electrons? Covalent bonds
A bond formed between a cation and an anion; transfer of electrons? Ionic Bonds
When many metallic atoms share their electrons with each other? Metallic bond
The tendency of an object to form a positive region and a negative region? Polarity
Bonds are polar if electrons are equally distributed between atoms? False! they have to be unequally distributed
Electrons generally stay between the nuclei? Diatomic Hydrogen (non-polar)
When 2 atoms share their unpaired electrons? Diatomic fluorine (polar)
When fluorine attracts hydrogen's one electron this is called? A hydrogen and fluorine bond
Bonds can range from non-polar to highly polar.
How can polarity be determined?? Subtracting 2 elements electronegatives
What types of bonds are stronger? polar or non-polar?? Polar
Completely Ionic bonds are possible? False!
Most bonds lie between covalent and ionic? true!
Covalent bonds are formed by ? Non metals
A covalent bonds shared electron is most likely to be fond where? In between the 2 atoms
The atoms of a bond are held together by? Electrostatic force
Like charges?? Repel one another
Opposite charges? Atrract
Name All of the diatomic elements? Hydrogen,nitrogen,oxygen,Fluorine,chlorine,bromine,and Iodine.
2 dimensional diagrams that show the bonds between different atoms? Lewis Structure
When 2 or more atoms join to form a collective Ion?? Polyatomic Ions
Most poly-atomic Ions are? Anions but cations are possible
Ionic bonds are formed between ? Metals and non-metals
3 dimensional structure of alternating ions? Crystal Lattice
Chemical formulas showing the ratio of cations and anions? Formula units
An extensive crystal lattice of metal cations surrounded and submerged in a "sea" of mobile electrons? Electron-sea theory
Electrons that aren't associated with a specific nucleus, "free" electrons. Delocalized Electrons
mixture of atoms of a metal and another element? Alloy
Many free roaming electrons result in what properties? Good conductivity,luster,ductility,malleability.
Properties of covalent bonds? Poor conductivity, no melting points, soft, less dense.
network covalent substances? Covalently bonded into a continues 3-d network, ex diamond.
Created by: Kyle Witt
 

 



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