Metallic Bonds and Ionic Bonds Flashcards
How do cations form?
They lose an electron
How do anions form?
They gain an electron
What groups are more likely to form what type of ion?
Metals are more likely to form cations and nonmetals are more likely to form anions
What is the octet rule?
The rule where an element won’t be stable until it has 8 valence electrons
What suffix do all monoatomic anions have?
-ide
What is an electrolyte?
A compound that conducts electricity when dissolved in water
What are two reasons ionic compounds have high melting points?
They are extremely strong and form crystal lattices
Why are ionic compounds brittle?
Ions of the same charge are pushed up against each other when putting pressure on the compound, which makes them repel and shatter
What are the properties of metals?
Conductive, malleable, ductile, lustrous, and solid at room temperature
What is the “sea of electrons” model?
The electrons of metal atoms moving around because of the loose grip held on them
Whare does it mean when it is said that electrons in metals are “delocalized”?
It means that valence electrons are held loosely in metal atoms, making the “sea of electrons”
Why are metals good conductors?
Because electricity is just energy going through electrons, and since they are delocalized it is really easy for that energy to run through the metal
Why are metals considered to be crystalline?
Because they are arranged orderly when bonded
What is an alloy?
2 or more bonded elements where at least one is a metal
Why are alloys important?
Because they have better properties than pure metals
What are three examples of an alloy?
Brass, bronze, and steel
