U2 electron transfer & ionic bonding + naming ionic compounds

What is ionic bonding

A chemical bond where two oppositely charged ions are electrostatically attracted to each other

What is electrostatic attraction

Attraction of cation to an anion

What is an ionic compound

When two or more ions become ionically bonded. Metal giving away electrons to a non-metal causing them to attract and bond

What happens when more and more ions bond

As more and more ions bond they form an ionic lattice

What is a lattice

Cations and anions side by side with no space in between held tightly due to electrostatic attraction on each cardinal plane.

How strong is an ionic bond

It’s extremely strong and you would need a large amount of energy and force to be able to break it.

Can you seperate an ionic bond

It is really easy to seperate an ionic bond making it brittle, blunt force causes a disruption and symmetry and causes ions to slide, this puts ions of the same charge next to each other causing them to seperate due to repulsion

What are the 3 rules for drawing a lattice

Show at least 3 layers and that it’s 3D, label the ions by their respective element (eg Na+ or Cl- )and leave no gaps and alternate between the charges.

How do u draw a electron transfer diagram

Draw electron shells of all M and NM that will be involved and put a plus between different elements, draw an arrow from each valence E in the M to the NM valence shell, draw an ⇨ to the result, draw new ions with new/complete shells, label everything and the results with + or -

What is the charge of an ionic compound

The charge is neutral

How many atoms does a polyatomic ion have

It has more than one atom eg OH-3, has oxygen and hydrogen, one compound gets one whole charge,

How do you name an ionic compound

Name the cation, + cation then drop it, than add suffix to anion and add anion but drop it.

eg. NaCl = sodium chloride

How do you name a transition metal in an ionic compound

Indicate the charge with roman number after the name (II) = anion = -2

iron(III)oxide = Fe+3O-2

What are the properties of ionic bonds

High melting and boiling points, good electrical and thermal conductivity when dissolved in water or in molten state, hard but brittle, soluble in water (mostly) but insoluble in non-polar solvent.