Question | Answer |
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. |