Modern inorganic chemistry

16 2500 >2000 o I500 1000 500 Hg .Rh •Pb 10 20 30 40 50 60 70 80 90 Atomic number Figure 1.6. First ionisation energies of th ...

THE PERIODICTABLE 17 period, although not quite regularly, and fall as we descend a group, for example lithium to caesium. The f ...

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19 TOOr Figure 1.8. (a] M.p. and b.p. of Group I A metals, (b) m.p. and b.p. of Group O elements, (c) m.p. and b.p. of the halog ...

20 THE PERIODIC TABLE 300 - a I £ 200- 100 H800 HI 1400 1200 1000 800 LiCl NaCl KCl RbCl CsCl Figure 1.9. (a) M.p. and h.p. of t ...

THE PERIODIC TABLE 21 Increasing metallic—electropositive—behaviour down a group also implies a change in the character of the o ...

22 THE PERIODiCTABLE periodic table, one corresponding to the element of atomic number situated at the foot of Group I A, and a ...

THE PERIODIC TABLE 23 (c) sulphur, (d) iron? Illustrate, for each valency given, the electronic structure of a compound in which ...

24 THE PERIODIC TABLE (a) What deduction can you make from this graph? (b) Continue the graph to element 60(Nd), and mark on it ...

Structure and bonding THE NATURE OF THE PROBLEM A very superficial examination of a large number of chemical sub- stances enable ...

26 STRUCTURE AND BONDING is generally true to say that each atom is surrounded by as many neighbouring atoms as can be accommoda ...

STRUCTURE AND BONDING 27 although considerable heating is often required. It can be con- cluded, therefore, that strong forces e ...

28 STRUCTURE AND BONDING THE ELECTRONIC THEORY OF VALENCY After Dalton, in 1807, had put forward the theory that chemical combin ...

STRUCTURE AND BONDING 29 How does the ease of ion formation change as we cross the periodic table What changes occur as we desc ...

30 STRUCTURE AND BONDING Table 2.1 Atomic number 3 11 19 37 55 Element Li Na K Rb Cs Atomic radius (s)* 0.152 0.186 0.227 0.248 ...

STRUCTURE AND BONDING 31 Group II elements can be seen to follow a pattern very like that found in Group I. Note, however, that ...

32 STRUCTURE AND BONDING p orbital (which is less firmly held) whilst oxygen and sulphur have one electron pair map orbital, the ...

STRUCTURE AND BONDING 33 ELECTRON AFFINITIES Typical elements in Groups V, VI and VII would be expected to achieve a noble gas c ...

34 STRUCTURE AND BONDING Table 2.5 Electron affinity (kJ mol ') Atomic number Element — Total 1st 2nd 8 16 0 s 142 200 + 844 4 ...

STRUCTURE AND BONDING 35 and is a major factor in determining the nature of an ionic com- pound. We shall discuss this further i ...