Bonding Flashcards
Which group rarely form bonds
The noble gases
How many types of bonding are there
3
What groups do ionic bonds occur between
Metals and non-metals
Electronegativity
The power of an atom to attract the electron density in a covalent bond towards itself
First ionisation energy
The amount of energy required to remove one mole of electrons from one mole of gaseous atoms forming one mole of gaseous 1+ atoms
What groups do covalent bonds occur between
Non-metals only
How do ionic bonds work
One or more electron is stolen from the outer shell of the metal and then transferred over to the non-metal
Why does ionic bonding occur
So the electron orbitals can become as close to a noble gas as possible
What force attracts the ions together
Electrostatic forces 3
What structure do ions take up
Ionic lattices
Why are ionic lattices solid at room temperature
They are in a giant ionic lattice and thus have strong attraction in the lattice
Why are ionic substances brittle
They are alternating patterns of ions in a lattice shape. They shatter because they are unable to move past each other
What happens to the electrons in a covalent bond
They are shared between the atoms
Do covalent bonds carry charge
No as they are shared electrons and not transferred
How are covalent bonds held together
They are held together by electrostatic attraction between the nuclei and the shared electrons
