Structure 1. Models of the particulate nature of matter

1.1 Introduction to the particulate nature of matter

1.2 The nuclear atom

1.3 Electron configurations

1.4 The mole

1.5 Ideal gases

Structure 2. Models of bonding and structure

2.1 The ionic model

2.2 The covalent model

2.3 The metallic model

2.4 From models to materials

Structure 3. Classification of matter

3.1 The periodic table

3.2 Functional groups: Organic compounds

Reactivity 1. What drives chemical reactions?

1.1 Measuring enthalpy changes

1.2 Energy cycles

1.3 Energy from fuels

Reactivity 2. How much, how fast and how far?

2.1 Amount of chemical change

2.2 Rate of chemical change

2.3 Extent of chemical change

Reactivity 3. What are the mechanisms of chemical change?

3.1 Proton transfer reactions

3.2 Electron transfer reactions

3.3 Electron sharing reactions (Radicals)

3.4 Electron-pair sharing reactions

IB Chemistry SL 2.3 The metallic model Question Bank

[Maximum number: 3]

Iron may be extracted from iron (II) sulfide, FeS.

(a)

Outline why metals, like iron, can conduct electricity.

[ 1 ]

(b)

Explain why the addition of small amounts of carbon to iron makes the metal harder.

[ 2 ]

[Maximum number: 2]

Titanium is a transition metal.

(a)

Describe the bonding in metals.

[ 2 ]

[Maximum number: 1]

Which metal has the strongest bonding?

[Maximum number: 1]

Which answer shows the correct order of metallic bond strength from strongest to weakest?

Al>Mg>Na>K

Al>Mg>K>Na

Na>K>Mg>Al

K>Na>Mg>Al

[Maximum number: 1]

Which metal has the strongest metallic bond?

[Maximum number: 1]

Which statement best explains the malleability of magnesium metal?

The metal lattice is held together by the attraction between magnesium ions.

The outer shell electrons of magnesium are free to move.

The layers of magnesium ions can slide relative to each other.

There are strong attractions between the magnesium ions and the free moving electrons.

[Maximum number: 1]

Which is the best description of a metallic bond?

Electrostatic attraction between oppositely charged ions

Electrostatic attraction between a pair of electrons and positively charged nuclei

Electrostatic attraction between a lattice of positive ions and delocalized electrons

Electrostatic attraction for a bonding pair of electrons which have been supplied by one of the atoms

[Maximum number: 1]

Which type of material is a good conductor of heat and electricity in solid and liquid states, is insoluble in water, and typically has a high melting point?

Covalent molecular

Covalent network

Ionic

Metallic

Which combination causes the strength of metallic bonding to increase?

[Maximum number: 3]

Both sodium and sodium chloride can conduct electricity.

(a)

Compare how electric current passes through sodium and sodium chloride by completing the table below.

[ 3 ]

0 selected

Question 1

Question 1(a)

Question 1(e)

Question 2

Question 2(a)

Question 9

Question 9

Question 9

Question 9

Question 10

Question 10

Question 10

Question 3

Question 3(a)