NaCl and I2

Question 1

Ionic crystals (NaCl) What is it?

Answer 1

An ionic crystal is made up of cations and anions in a regualr repeating pattern and held together in a lattice by strong ionic bonds. All ionic compounds are ionic crystals.

Question 2

What type of bonding does NaCl have?

Answer 2

Ionic

Question 3

What is the structure of NaCl?

Answer 3

giant ionic lattics

Question 4

What is the physical property of NaCl (4)?

Answer 4

High m.p/b.p
Hard and brittle
soluble in water
Conducts electricity when molten or in solution

Question 5

Describe the 6:6 coordination (NaCl)

Answer 5

Each sodium ion is surrounded by six chloride ions and each chloride ion is surrounded by six sodium ions

Question 6

What is I2

Answer 6

I2 (Iodine) is a diatomic simple covalent molecule. Iodine appears as grey black shiny crystals which produces a purple vapor upon heating .
The iodine crystal can be described as a face-centerd cube (cubic arrangement). The molecules are held together by weak van-der-waals forces of attraction, this accounts or the low melting and boiling points
it has a large network of covalent bonds