Shannon-Prewitt Effective Ionic Radius - Part 3 | The Elements Handbook at KnowledgeDoor

Shannon-Prewitt Effective Ionic Radius Navigation

Actinium to Erbium

Europium to Molybdenum

Neodymium to Silicon

Silver to Zirconium

By Name

By Symbol

By Number

Element

Ion Charge

Coordination Number

Spin State and Shape

Shannon-Prewitt Effective Ionic Radius

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Neodymium

+2

8

129 pm

9

135 pm

+3

6

98.3 pm

8

110.9 pm

9

116.3 pm

12

127 pm

Neptunium

+2

6

110 pm

+3

6

101 pm

+4

6

87 pm

8

98 pm

+5

6

75 pm

+6

6

72 pm

+7

6

71 pm

Nickel

+2

4

55 pm

square planer

49 pm

5

63 pm

6

69.0 pm

+3

6

low spin

56 pm

high spin

60 pm

+4

6

low spin

48 pm

Niobium

+3

6

72 pm

+4

6

68 pm

8

79 pm

+5

4

48 pm

6

64 pm

7

69 pm

8

74 pm

Nitrogen

-3

4

146 pm

+3

6

16 pm

+5

3

-10.4 pm

6

13 pm

Osmium

+4

6

63.0 pm

+5

6

57.5 pm

+6

5

49 pm

6

54.5 pm

+7

6

52.5 pm

+8

4

39 pm

Oxygen

-2

2

135 pm

3

136 pm

4

138 pm

6

140 pm

8

142 pm

Palladium

+1

2

59 pm

+2

4

square planer

64 pm

6

86 pm

+3

6

76 pm

+4

6

61.5 pm

Phosphorus

+3

6

44 pm

+5

4

17 pm

5

29 pm

6

38 pm

Platinum

+2

4

square planer

60 pm

6

80 pm

+4

6

62.5 pm

+5

6

57 pm

Plutonium

+3

6

100 pm

+4

6

86 pm

8

96 pm

+5

6

74 pm

+6

6

71 pm

Polonium

+4

6

94 pm

8

108 pm

+6

6

67 pm

Potassium

+1

4

137 pm

6

138 pm

7

146 pm

8

151 pm

9

155 pm

10

159 pm

12

164 pm

Praseodymium

+3

6

99 pm

8

112.6 pm

9

117.9 pm

+4

6

85 pm

8

96 pm

Promethium

+3

6

97 pm

8

109.3 pm

9

114.4 pm

Protactinium

+3

6

104 pm

+4

6

90 pm

8

101 pm

+5

6

78 pm

8

91 pm

9

95 pm

Radium

+2

8

148 pm

12

170 pm

Rhenium

+4

6

63 pm

+5

6

58 pm

+6

6

55 pm

+7

4

38 pm

6

53 pm

Rhodium

+3

6

66.5 pm

+4

6

60 pm

+5

6

55 pm

Rubidium

+1

6

152 pm

7

156 pm

8

161 pm

9

163 pm

10

166 pm

11

169 pm

12

172 pm

14

183 pm

Ruthenium

+3

6

68 pm

+4

6

62.0 pm

+5

6

56.5 pm

+7

4

38 pm

+8

4

36 pm

Samarium

+2

7

122 pm

8

127 pm

9

132 pm

+3

6

95.8 pm

7

102 pm

8

107.9 pm

9

113.2 pm

12

124 pm

Scandium

+3

6

74.5 pm

8

87.0 pm

Selenium

-2

6

198 pm

+4

6

50 pm

+6

4

28 pm

6

42 pm

Silicon

+4

4

26 pm

6

40.0 pm

References (Click the next to a value above to see complete citation information for that entry)

Dronskowski, Richard. Computational Chemistry of Solid State Materials. Weinheim, Germany: WILEY-VCH Verlag GmbH & Co. KGaA, 2005.

Shannon, R. D. "Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides." Acta Crystallographica Section A, volume 32, number 5, 1976, pp. 751–767. doi:10.1107/S0567739476001551

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