Structure And Bonding Flashcards
What happens during ionic bonding
Electrons are transferred and ions are formed
What happens during covalent bonding
Electrons are shared and no ions are formed
What makes an atom stable
A Full outer shell
Why are the noble gasses (elements in group 0) really unreactive
They have full outer shells
What happens if atoms don’t have a full outer shell
React with another atoms
What is an ion
An atom that has lost or gained electrons
Where on the periodic table can metals be found
Left
In terms of their electronic structure, why are the metals found here
They don’t have many electrons in their outer shell
Do metals form positive or negative ions
Positive
What type of bonding is between metal and non metals
Ionic
What force holds opposite charges together
Strong electrostatic forces
Why do ionic compounds have high melting points (2 answers)
Because they have strong electrostatic forces which take a lot of energy to overcome
Why can’t ionic compounds conduct electricity when solids
The ions cannot move
When can ionic compounds conduct electricity
In a solution (dissolved)
When melted (“molten”)
Why can ionic compounds conduct electricity when molten (melted)
The ions can flow freely
What structure are metallic bonds
Giant
Where are the electrons in metallic bonding
Sea of free electrons
What properties do metallic bonding have
High melting point which takes lots of energy to overcome
Can conduct electricity
Which types of elements bond with ionic bonds
Metals and non metals
Which types of elements bond with covalent bonds
Non metals
What are the forces called between molecules in covalent bonds and how much energy is needed to overcome then
Intermolecular and little energy
Covalent bonds are what
Strong
What bonding is graphite
Each carbon bonds to 3 carbons
Can graphite conduct electricity
Yes
