Kovalenter Radius

Als Kovalenter Radius wird der halbe Abstand zweier Atome desselben Elements bezeichnet, die kovalent gebunden sind. Er ist von der Art der Bindung (einfach, doppelt, …) und der Elektronegativität der Bindungspartner abhängig.

ElementKovalenter Radius
1HWasserstoff31 ±5 pm
2HeHelium28 pm
3LiLithium128 ±7 pm
4BeBeryllium96 ±3 pm
5BBor84 ±3 pm
6CKohlenstoff76 pm
7NStickstoff71 ±1 pm
8OSauerstoff66 ±2 pm
9FFluor64 pm
10NeNeon58 pm
11NaNatrium166 ±9 pm
12MgMagnesium141 ±7 pm
13AlAluminium121 ±4 pm
14SiSilicium111 pm
15PPhosphor107 ±3 pm
16SSchwefel105 ±3 pm
17ClChlor102 ±4 pm
18ArArgon106 ±10 pm
19KKalium203 ±12 pm
20CaCalcium176 ±10 pm
21ScScandium170 ±7 pm
22TiTitan160 ±8 pm
23VVanadium153 ±8 pm
24CrChrom139 ±5 pm
25MnMangan139 ±5 pm
26FeEisen132 ±3 pm
27CoCobalt126 ±3 pm
28NiNickel124 ±4 pm
29CuKupfer132 ±4 pm
30ZnZink122 ±4 pm
31GaGallium122 ±3 pm
32GeGermanium122 pm
33AsArsen119 ±4 pm
34SeSelen120 ±4 pm
35BrBrom120 ±3 pm
36KrKrypton116 ±4 pm
37RbRubidium220 ±9 pm
38SrStrontium195 ±10 pm
39YYttrium190 ±7 pm
40ZrZirconium175 ±7 pm
41NbNiob164 ±6 pm
42MoMolybdän154 ±5 pm
43TcTechnetium147 ±7 pm
44RuRuthenium146 ±7 pm
45RhRhodium142 ±7 pm
46PdPalladium139 ±6 pm
47AgSilber145 ±5 pm
48CdCadmium144 ±9 pm
49InIndium142 ±5 pm
50SnZinn139 ±4 pm
51SbAntimon139 ±5 pm
52TeTellur138 ±4 pm
53IIod139 ±3 pm
54XeXenon140 ±9 pm
55CsCaesium244 ±11 pm
56BaBarium215 ±11 pm
57LaLanthan207 ±8 pm
58CeCer204 ±9 pm
59PrPraseodym203 ±7 pm
60NdNeodym201 ±6 pm
61PmPromethium199 pm
62SmSamarium198 ±8 pm
63EuEuropium198 ±6 pm
64GdGadolinium196 ±6 pm
65TbTerbium194 ±5 pm
66DyDysprosium192 ±7 pm
67HoHolmium192 ±7 pm
68ErErbium189 ±6 pm
69TmThulium190 ±10 pm
70YbYtterbium187 ±8 pm
71LuLutetium187 ±8 pm
72HfHafnium175 ±10 pm
73TaTantal170 ±8 pm
74WWolfram162 ±7 pm
75ReRhenium151 ±7 pm
76OsOsmium144 ±4 pm
77IrIridium141 ±6 pm
78PtPlatin136 ±5 pm
79AuGold136 ±6 pm
80HgQuecksilber132 ±5 pm
81TlThallium145 ±7 pm
82PbBlei146 ±5 pm
83BiBismut148 ±4 pm
84PoPolonium140 ±4 pm
86RnRadon150 pm
87FrFrancium(260 pm)
88RaRadium221 ±2 pm
89AcActinium215 pm
90ThThorium206 ±6 pm
91PaProtactinium200 pm
92UUran196 ±7 pm
93NpNeptunium190 ±1 pm
94PuPlutonium187 ±1 pm
95AmAmericium180 ±6 pm
96CmCurium169 ±3 pm
104RfRutherfordium(157 pm)
105DbDubnium(149 pm)
106SgSeaborgium(143 pm)
107BhBohrium(141 pm)
108HsHassium(134 pm)
109MtMeitnerium(129 pm)
110DsDarmstadtium(128 pm)
111RgRoentgenium(121 pm)
112CnCopernicium(122 pm)
113NhNihonium(176 ±4 pm)
114FlFlerovium(174 ±3 pm)
115McMoscovium(157 ±1 pm)
116LvLivermorium(164 ±2 pm)
117TsTenness(156 pm)
118OgOganesson(157 pm)