Metallic Bonds Flashcards
Are metals ionic?
Metals are not ionic, but share several ionic properties.
What is similar between ions and metal bonds?
Metal and ionic compound bonding is based on the attraction of particle with unlike charges.
What is the metal equivalent of ionic crystals?
Lattices, which are formed by metals in solid states.
What is the difference between valence electrons in metallic and other bonding?
Metals don’t share valence electrons with neighboring atoms or lose their valence electrons. Instead, inside the lattice, the outer energy levels of the atoms overlap.
What is the electron sea model?
The electron sea model is a unique arrangement of electrons that proposes that all the metal atoms in a metallic solid contribute their valence electrons to form an electron sea.
What does the electron sea surround?
The electron sea surround metal cations in the lattice.
What are delocalized/mobile electrons?
Delocalized electrons are valence electrons found in metallic bonds that can move easily between lattice cations.
How are metallic cations formed?
Metallic cations are formed when the atom’s outer electrons move freely through the solid.
What is a metallic bond?
The attraction of a metallic cation for delocalized electrons.
What determines the hardness and strength of a metal?
The number of delocalized electrons determines the properties of hardness and strength
What determines the melting and boiling points of a metal?
Melting and boiling points are caused by the mobility of electrons and cations in the metal.
What makes metals good conductors?
The movement of mobile electrons around positive metallic cations makes metals good conductors.
