Bonding - Unit 1 Topic 3

Question 1

What ions do metals form?

Answer 1

Cations (positive ions)

Question 2

What ions do non-metals form?

Answer 2

Anions (negative ions)

Question 3

What are molecular ions?

Answer 3

Ions composed of two or more atoms covalently bonded.

Question 4

What is ionic bonding?

Answer 4

Bonding between a metal and a non-metal. Opposite charges attract them.

Question 5

Draw the ionic bonding between magnesium and fluorine.

Answer 5

Mg = 2,8,2 Fl = 2,7

Mg loses 2 electrons. Mg transfers 2 electrons, 1 to each Fluorine atom. Mg = 2,8 Fl = 2,8

Question 6

What is covalent bonding?

Answer 6

Shared pair of electrons between 2 non-metals.

Question 7

What is a diatomic molecule?

Answer 7

2 atoms in each molecule.

Question 8

Show the covalent bonding between 2 oxygen atoms

Show a lone pair and a bonded pair of electrons.

Answer 8

2 bonding pairs of electrons

Question 9

What is metalllic bonding?

Answer 9

Positive ions in a regular lattice in a sea of delocalised electrons.