Allotropy (HSC SSCE Chemistry): Flashcards
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Definition of allotropy
Definition of allotropy
Element exists in 2+ different forms in same physical state
Why allotropes have different properties
Why allotropes have different properties
Atoms arranged or bonded differently
Bonds per carbon atom in diamond
Bonds per carbon atom in diamond
Four covalent bonds
Does diamond conduct electricity? Why?
Does diamond conduct electricity? Why?
No, all valence electrons used in bonding
Bonds per carbon atom in graphite
Bonds per carbon atom in graphite
Three covalent bonds
Why graphite conducts electricity
Why graphite conducts electricity
Has delocalised electrons that can move freely
Carbon atoms in buckminsterfullerene ()
Carbon atoms in buckminsterfullerene ()
60 carbon atoms
Phosphorus reactivity order (most to least reactive)
Phosphorus reactivity order (most to least reactive)
White > red > black
Two allotropes of oxygen
Two allotropes of oxygen
(diatomic) and (triatomic ozone)
Role of ozone in atmosphere
Role of ozone in atmosphere
Absorbs harmful UV radiation