Elements Of Life: Structure Type

Question 1

Definition of INTERMOLECULAR

Answer 1

Between molecules

Eg. Water, melting / boiling point

Question 2

Definition of INTRAmolecular

Answer 2

Between the atoms

Eg. Covalent bond

Question 3

Describe and ionic lattice structure eg. sodium chloride ( 3 )

Answer 3

Solid = no free ions / electrons = no conductivity

Solution = free ions = conducts

Diagram- large spheres = anions
-small spheres = cations

Question 4

Describe a metallic lattice structure eg. magnesium

Answer 4

Solid / molten = delocalised electrons = free to move = conducts electricity

Question 5

Describe giant covalent structure eg. Diamond (2)

Answer 5

1. Very high melting/ boiling point
   - strong covalent bonds
   - no intermolecular forces
2. No free electrons / ions

Question 6

What is the exception in giant covalent bonds

Answer 6

Graphite / Graphene

= 1 free electron due to only 3/4 carbon bonds

Question 7

Describe a simple molecular structure eg. Iodine (2)

Answer 7

1. Low melting / boiling point
   - weak intermolecular forces
2. No conductivity in solid / solution

Question 8

What 2 types of structure use covalent bonding

Answer 8

Simple molecular

Giant covalent

Question 9

What are the particles of a monatomic structure

Answer 9

Atoms

Question 10

What are the particles of simple molecular structures

Answer 10

Molecules

Question 11

What are the particles of giant covalent structures

Answer 11

Atoms

Question 12

What are the particles of giant ionic structures

Answer 12

Ions

Question 13

What are the particles of metallic structures

Answer 13

Ions and delocalised electrons

Question 14

What is an exception for structure types and there particles

Answer 14

Ammonium chloride
= simple molecular
= ions not molecules due the ammonium ions

Question 15

Which substances are the only monatomic ones

Answer 15

Group 0 elements

Question 16

Which substances are giant covalent (4)

Answer 16

1. Diamond
2. Graphite
3. Silicon
4. Silicon dioxide