Periodensystem-Diagramm
Atomradius im Periodensystem
Der Atomradius ist der Abstand vom Kern bis zum äußeren Rand der Elektronenhülle eines Atoms, hier in Pikometern (1 pm = 10⁻¹² m).
Diagramm herunterladen
- 1H120
- 2He140
- 3Li182
- 4Be153
- 5B192
- 6C170
- 7N155
- 8O152
- 9F135
- 10Ne154
- 11Na227
- 12Mg173
- 13Al184
- 14Si210
- 15P180
- 16S180
- 17Cl175
- 18Ar188
- 19K275
- 20Ca231
- 21Sc211
- 22Ti187
- 23V179
- 24Cr189
- 25Mn197
- 26Fe194
- 27Co192
- 28Ni163
- 29Cu140
- 30Zn139
- 31Ga187
- 32Ge211
- 33As185
- 34Se190
- 35Br183
- 36Kr202
- 37Rb303
- 38Sr249
- 39Y219
- 40Zr186
- 41Nb207
- 42Mo209
- 43Tc209
- 44Ru207
- 45Rh195
- 46Pd202
- 47Ag172
- 48Cd158
- 49In193
- 50Sn217
- 51Sb206
- 52Te206
- 53I198
- 54Xe216
- 55Cs343
- 56Ba268
- 57La240
- 58Ce235
- 59Pr239
- 60Nd229
- 61Pm236
- 62Sm229
- 63Eu233
- 64Gd237
- 65Tb221
- 66Dy229
- 67Ho216
- 68Er235
- 69Tm227
- 70Yb242
- 71Lu221
- 72Hf212
- 73Ta217
- 74W210
- 75Re217
- 76Os216
- 77Ir202
- 78Pt209
- 79Au166
- 80Hg209
- 81Tl196
- 82Pb202
- 83Bi207
- 84Po197
- 85At202
- 86Rn220
- 87Fr348
- 88Ra283
- 89Ac260
- 90Th237
- 91Pa243
- 92U240
- 93Np221
- 94Pu243
- 95Am244
- 96Cm245
- 97Bk244
- 98Cf245
- 99Es245
- 100Fm—
- 101Md—
- 102No—
- 103Lr—
- 104Rf—
- 105Db—
- 106Sg—
- 107Bh—
- 108Hs—
- 109Mt—
- 110Ds—
- 111Rg—
- 112Cn—
- 113Nh—
- 114Fl—
- 115Mc—
- 116Lv—
- 117Ts—
- 118Og—
NiedrigHoch(pm)
Keine DatenDer Trend
Atome werden innerhalb einer Gruppe nach unten größer, weil jede Periode eine neue Elektronenschale hinzufügt, und innerhalb einer Periode nach rechts kleiner, weil die wachsende Kernladung dieselbe Schale näher heranzieht. Die größten Atome sind daher die Alkalimetalle unten links, die kleinsten liegen oben rechts. Radien werden auf verschiedene Weise bestimmt (kovalent, metallisch, Van-der-Waals), daher weichen veröffentlichte Werte voneinander ab; dieses Diagramm nutzt einen einheitlichen Datensatz.
Höchste Werte
- Francium (Fr)348 pm
- Caesium (Cs)343 pm
- Rubidium (Rb)303 pm
- Radium (Ra)283 pm
- Kalium (K)275 pm
Niedrigste Werte
- Wasserstoff (H)120 pm
- Fluor (F)135 pm
- Zink (Zn)139 pm
- Helium (He)140 pm
- Kupfer (Cu)140 pm
Atomradius aller Elemente
| Nr. | Element | Atomradius (pm) |
|---|---|---|
| 1 | Wasserstoff (H) | 120 |
| 2 | Helium (He) | 140 |
| 3 | Lithium (Li) | 182 |
| 4 | Beryllium (Be) | 153 |
| 5 | Bor (B) | 192 |
| 6 | Kohlenstoff (C) | 170 |
| 7 | Stickstoff (N) | 155 |
| 8 | Sauerstoff (O) | 152 |
| 9 | Fluor (F) | 135 |
| 10 | Neon (Ne) | 154 |
| 11 | Natrium (Na) | 227 |
| 12 | Magnesium (Mg) | 173 |
| 13 | Aluminium (Al) | 184 |
| 14 | Silicium (Si) | 210 |
| 15 | Phosphor (P) | 180 |
| 16 | Schwefel (S) | 180 |
| 17 | Chlor (Cl) | 175 |
| 18 | Argon (Ar) | 188 |
| 19 | Kalium (K) | 275 |
| 20 | Calcium (Ca) | 231 |
| 21 | Scandium (Sc) | 211 |
| 22 | Titan (Ti) | 187 |
| 23 | Vanadium (V) | 179 |
| 24 | Chrom (Cr) | 189 |
| 25 | Mangan (Mn) | 197 |
| 26 | Eisen (Fe) | 194 |
| 27 | Cobalt (Co) | 192 |
| 28 | Nickel (Ni) | 163 |
| 29 | Kupfer (Cu) | 140 |
| 30 | Zink (Zn) | 139 |
| 31 | Gallium (Ga) | 187 |
| 32 | Germanium (Ge) | 211 |
| 33 | Arsen (As) | 185 |
| 34 | Selen (Se) | 190 |
| 35 | Brom (Br) | 183 |
| 36 | Krypton (Kr) | 202 |
| 37 | Rubidium (Rb) | 303 |
| 38 | Strontium (Sr) | 249 |
| 39 | Yttrium (Y) | 219 |
| 40 | Zirconium (Zr) | 186 |
| 41 | Niob (Nb) | 207 |
| 42 | Molybdän (Mo) | 209 |
| 43 | Technetium (Tc) | 209 |
| 44 | Ruthenium (Ru) | 207 |
| 45 | Rhodium (Rh) | 195 |
| 46 | Palladium (Pd) | 202 |
| 47 | Silber (Ag) | 172 |
| 48 | Cadmium (Cd) | 158 |
| 49 | Indium (In) | 193 |
| 50 | Zinn (Sn) | 217 |
| 51 | Antimon (Sb) | 206 |
| 52 | Tellur (Te) | 206 |
| 53 | Iod (I) | 198 |
| 54 | Xenon (Xe) | 216 |
| 55 | Caesium (Cs) | 343 |
| 56 | Barium (Ba) | 268 |
| 57 | Lanthan (La) | 240 |
| 58 | Cer (Ce) | 235 |
| 59 | Praseodym (Pr) | 239 |
| 60 | Neodym (Nd) | 229 |
| 61 | Promethium (Pm) | 236 |
| 62 | Samarium (Sm) | 229 |
| 63 | Europium (Eu) | 233 |
| 64 | Gadolinium (Gd) | 237 |
| 65 | Terbium (Tb) | 221 |
| 66 | Dysprosium (Dy) | 229 |
| 67 | Holmium (Ho) | 216 |
| 68 | Erbium (Er) | 235 |
| 69 | Thulium (Tm) | 227 |
| 70 | Ytterbium (Yb) | 242 |
| 71 | Lutetium (Lu) | 221 |
| 72 | Hafnium (Hf) | 212 |
| 73 | Tantal (Ta) | 217 |
| 74 | Wolfram (W) | 210 |
| 75 | Rhenium (Re) | 217 |
| 76 | Osmium (Os) | 216 |
| 77 | Iridium (Ir) | 202 |
| 78 | Platin (Pt) | 209 |
| 79 | Gold (Au) | 166 |
| 80 | Quecksilber (Hg) | 209 |
| 81 | Thallium (Tl) | 196 |
| 82 | Blei (Pb) | 202 |
| 83 | Bismut (Bi) | 207 |
| 84 | Polonium (Po) | 197 |
| 85 | Astat (At) | 202 |
| 86 | Radon (Rn) | 220 |
| 87 | Francium (Fr) | 348 |
| 88 | Radium (Ra) | 283 |
| 89 | Actinium (Ac) | 260 |
| 90 | Thorium (Th) | 237 |
| 91 | Protactinium (Pa) | 243 |
| 92 | Uran (U) | 240 |
| 93 | Neptunium (Np) | 221 |
| 94 | Plutonium (Pu) | 243 |
| 95 | Americium (Am) | 244 |
| 96 | Curium (Cm) | 245 |
| 97 | Berkelium (Bk) | 244 |
| 98 | Californium (Cf) | 245 |
| 99 | Einsteinium (Es) | 245 |
| 100 | Fermium (Fm) | — |
| 101 | Mendelevium (Md) | — |
| 102 | Nobelium (No) | — |
| 103 | Lawrencium (Lr) | — |
| 104 | Rutherfordium (Rf) | — |
| 105 | Dubnium (Db) | — |
| 106 | Seaborgium (Sg) | — |
| 107 | Bohrium (Bh) | — |
| 108 | Hassium (Hs) | — |
| 109 | Meitnerium (Mt) | — |
| 110 | Darmstadtium (Ds) | — |
| 111 | Roentgenium (Rg) | — |
| 112 | Copernicium (Cn) | — |
| 113 | Nihonium (Nh) | — |
| 114 | Flerovium (Fl) | — |
| 115 | Moscovium (Mc) | — |
| 116 | Livermorium (Lv) | — |
| 117 | Tennessin (Ts) | — |
| 118 | Oganesson (Og) | — |