Structure & Bonding

Which type of bonding and structure do the noble gases have?

Monatomic

how to tell if an element is a single, double or triple covalent bond

how many electrons does it need to make a stable outer electron shell

E.g. oxygen needs two

how to find ionic character

Difference in electronegativity

What if there is diatomic elements in a compound while trying to find ionic character

Count it as just the one electronegativity, I think

What is a discrete molecule?

Covalent molecules with a definite formula and a definite number of atoms bonded together.

What type of intermolecular force can operate between all atoms and molecules?

London dispersion forces

What is the strongest intermolecular force called?

Hydrogen bonding

What does hydrogen want to bond with

Fluorine, oxygen and nitrogen (FON)

How to find the number of ions in x moles of a compound

Symbol

Valency

Swap (Divide)

Formula

Count ions

Multiply ion number by x number of moles

Explain fully why the boiling points of the group 4 hydrides increase

going down the group.

In your answer you should refer to the intermolecular forces involved.

Intermolecular forces increase going down the group (1)

LDFs are the forces broken between the molecules (1)

The more electrons the stronger the LDFs (1)