You are watching: In a piece of metal, what holds the atoms together?
|4.5.1||Determine if a substance has actually metallic bonding based ~ above the identity of the elements.|
|4.5.2||Describe properties of metallic bonding.|
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METALLIC link VIDEO watch this video clip to see an atomic check out of heavy metal!
METALLIC shortcut INFORMATION
Determining if a substance has metallic bonding is easy! If a solid substance is composed of metal atoms, the atom are held together by metallic bonds.
Metals kind a decision lattice the is written of steel cations surrounded by your valence electrons. These electrons occupy the room between the cations and are totally free to move between the metal cations in the decision lattice. This version is referred to as the electron sea model because the cations exist in a "sea" that electrons. The strong electrostatic force in between the cations and also the sea that delocalized electron is what holds the metal crystal lattice together.
A steel crystal lattice mirroring the steel cations and the sea the electrons in between the cations.
Metals exhibit particular properties that identify them together metals. To varying degrees, steels exhibit these properties:malleability: metals deserve to be pounded into shapes ductility: metals can be pulled to kind wires conductivity the electricity and heat: electron can quickly move within the steel lattice conducting both electicity and heat high melting point: the cations in a metal are strongly attracted to the sea the electrons; it take a the majority of heat energy to move a cation native the lattice
Self Checkdeserve to you determine if a substance has actually metallic bonds? have the right to you list five solids that have actually metallic bonds? can you list 4 properties the metals? have the right to you explain the reasons metals have the four properties above?