Flashcards
C2 Bonding Key Points
Flashcards do conjunto (19)
- 1Why do atoms bond?To get a stable full outershell of electrons
- 2What type of bonding to you get with a metal an a non-metalIonic Bonding
- 3What type of bonding do you get with two non-metals?Covalent bonding
- 4What happens to a metal in ionic bonding?It loses its outer shell electrons to form a positive ion
- 5What happens to a non metal in ionic bonding?It gains electrons to get a full outer shell of electrons forming a negative ion
- 6What is an ion?A charged particle
(metals form positive ions, non-metals negative ions) - 7What properties does an ionic compound have?High melting point
Only conduct electricity when molten or dissolved in water - 8Why do ionic compound have high melting points?They have a giant ionic lattice containing lots of strong ionic bonds which need to be broken with large amounts of energy
- 9Why do liquid and aqueous ionic compounds conduct electricity? (aqueous means they are dissolved in water)Because their ions are free to move and carry charge.
- 10What happens to the electrons of atoms in covalent bonding?The two atoms share electrons to get a full outershell
- 11What 2 types of covalent compounds are there?Simple molecular
&
Giant covalent - 12What are the properties of a simple molecular covalent compoundLow melting point
Does not conduct electricity - 13What are the properties of a giant covalent compound?Very high melting points
Do not conduct electricity except graphite & fullerenes - 14What are the properties of diamond?High melting point & hard
(Giant covalent structure, lots of strong bonds) - 15What are the properties of graphite?High melting point (strong bonds)
Conduct electricity (delocalised electrons)
Slippy (layers can slide) - 16What type of bonding occurs in metals?Metallic bonding
- 17Why do metals conduct electricity?Their outer shell electrons are delocalised and free to move carrying the charge
- 18What's the difference between a pure metal and an alloyAn alloy is a mixture of metals and is harder
- 19What is a nano particle?A really really small particle
Informações
- Descrição
- FlashCards sobre C2 Bonding Key Points, criado por Robert Hebbs em 03-12-2014.
- Criado por
- Robert Hebbs · dez 2014
- Atualizado
- 19 fev 2016
- Visualizações
- 41
- Avaliação