Bonding

Question 1

What is Ionic bonding

Answer 1

Electrostatic attraction between positively charged ions and negative electrons

Question 2

What is metallic bonding

Answer 2

Electrostatic attraction between the positively charged protons and the sea of delocalised electrons

Question 3

What are the types of IMF

Answer 3

VanderWalls
Hydrogen bonding
Dipole - Dipole

Question 4

What is covalent bonding

Answer 4

A shared pair of electrons

Question 5

What is Dative covalent bonding

Answer 5

Where one atom shares both electrons

Question 6

What is electronegativity

Answer 6

The ability for an atom to attract a pair of electrons towards itself in a covalent bond

Question 7

How are dipoles induced

Answer 7

Random movement of electrons, Therefore a difference in electronegativity. This difference induces a dipole in a neighbouring molecules

Question 8

What bonds are Hydrogen bonds

Answer 8

H with NOF

Question 9

Why does the boiling points increase down group 7

Answer 9

The size of the halogen molecules increase as you go down the group.
More protons more electrons
so more shielding and
the atom radius increases.
This means that there is weaker nuclear attraction between the outermost electron and the nucleus which
makes it more difficult to gain an electron

Question 10

What happens to boiling points down group 2

Answer 10

The boiling points decrease
The atomic radius increases
More shielding
Weaker nuclear attraction
Makes it easier to lose electrons