Structures Of Atoms

Question 1

Structure of simple molecular structure

Answer 1

Small discrete molecules

Question 2

Structure of giant covalent structure

Answer 2

giant lattice of atoms

Question 3

Structure of giant ionic structure

Answer 3

giant lattice of ions

Question 4

Structure of giant metallic structure

Answer 4

giant lattice of metal ions surrounded by a ‘sea’ of delocalized electrons

Question 5

Bonds holding constituent particles for simple molecular structure

Answer 5

strong covalent bonds bind atoms together within a molecule; separate molecules are attracted by weak intermolecular forces (e.g. van der Waals’ forces)

Question 6

Bonds holding constituent particles for giant covalent structure

Answer 6

covalent bonds link atoms throughout the network structure

Question 7

Bonds holding constituent particles for giant ionic structure

Answer 7

ionic bonds link oppositely charged ions throughout the structure

Question 8

Bonds holding constituent particles for giant metallic structure

Answer 8

metallic bonds link the metal ions (positively charged) and the ‘sea’ of electrons (negatively charged)

Question 9

State under room conditions of simple molecular structure

Answer 9

gases, volatile liquids or solids of low melting points

Question 10

State under room conditions of giant covalent structure

Answer 10

Solids

Question 11

State under room conditions of giant ionic structures

Answer 11

Solids

Question 12

State under room conditions of giant metallic structure

Answer 12

Solids (except mercury)

Question 13

Melting point of simple molecular structure

Answer 13

Low

Question 14

Melting point of giant covalent structures

Answer 14

Very high

Question 15

Melting point of giant ionic structure

Answer 15

High

Question 16

Melting point of giant metallic structure

Answer 16

Usually high

Question 17

Hardness of solid form of simple molecular structure

Answer 17

Soft

Question 18

Hardness of solid form of giant covalent structure

Answer 18

Usually hard

Question 19

Hardness of solid form of giant ionic structure

Answer 19

Hard

Question 20

Hardness of solid form of giant metallic structure

Answer 20

Usually hard

Question 21

Solubility in water of simple molecular structure

Answer 21

Most are insoluble

Question 22

Solubility in water of giant covalent structure

Answer 22

Insoluble

Question 23

Solubility in water of giant ionic structure

Answer 23

Most are soluble

Question 24

Solubility in water of giant metallic structure

Answer 24

insoluble (except where there is reaction with water)

Question 25

Solubility in non-aqueous solvents of simple molecular structure

Answer 25

Generally soluble

Question 26

Solubility in non-aqueous solvents of giant covalent structure

Answer 26

Insoluble

Question 27

Solubility in non-aqueous solvents of giant ionic structure

Answer 27

Insoluble

Question 28

Solubility in non-aqueous solvents of giant metallic structure

Answer 28

Insoluble

Question 29

Electrical conductivity of simple molecular structure

Answer 29

non-conductors Note: A few (e.g. hydrogen chloride) react with water to form a solution which conducts electricity

Question 30

Electrical conductivity of giant covalent structure

Answer 30

non-conductors (except graphite)

Question 31

Electrical conductivity of giant ionic structure

Answer 31

non-conductors when solid; good conductors when molten or in aqueous solution

Question 32

Electrical conductivity of giant metallic structure

Answer 32

good conductors