Metals And Bonding Flashcards
Sulfate ion
So4 2-
Carbonate ion
Co3 2-
Nitrate ion
No3 -
Hydroxide ion
OH -
Ammonium ion
NH4 +
What are the 4 key properties of ionic compounds?
Sharp edges
High melting point
Soluble
Conducts electricity when dissolved or molten
What is the name of the structure ionic compounds are ordered in?
Giant ionic lattice
Which type of elements will ionic bonding occur between?
Metals and non metals
Do covalent bonds have high or low melting and boiling points and why?
Low- there are weak intermolecular forces between the ions which doesn’t require much energy to overcome
Do ionic compounds have high or low melting and boiling points and why?
High- there are lots of strong electrostatic forces of attraction between oppositely charged ions which require lots of energy to overcome
Why do atoms loose or gain electrons in there outer shell?
So the shell can become full and the atom will be stable
Why are metals malleable?
They have layers of atoms which can slide past each other easily
Why are alloys harder than pure metals?
The different element/s added to the metal disrupt the rows of metal atoms meaning they can’t slide past each other
What are the four types of structure
Giant ionic -metal + non metal
Simple covalent -non metal + non metal
Giant covalent -non metal + non metal
Metallic -metal + metal
What is the structure of metals?
A giant lattice consisting of Positive metal ions surrounded by a sea of negative delocalised electrons
What are diatomic elements?
Elements that go around in pairs
What is oxidation?
The loss of electrons
The gain of oxygen
What is reduction?
The gain of electrons
The loss of oxygen
