Input interpretation
![f block ions](../image_source/aa562abe898488e6c0ac92571d8e0e4e.png)
f block ions
Members
![lanthanum(III) cation | cerium(III) cation | cerium(IV) cation | praseodymium(III) cation | neodymium(III) cation | samarium(III) cation | europium(II) cation | europium(III) cation | gadolinium(III) cation | terbium(III) cation | dysprosium(III) cation | holmium(III) cation | erbium(III) cation | thullium(III) cation | ytterbium(III) cation | lutetium(III) cation | actinium cation | thorium(IV) cation | protactinium(V) cation | uranium(VI) cation (total: 20)](../image_source/48655dd6797ae7fed6e960ba0f8cfc15.png)
lanthanum(III) cation | cerium(III) cation | cerium(IV) cation | praseodymium(III) cation | neodymium(III) cation | samarium(III) cation | europium(II) cation | europium(III) cation | gadolinium(III) cation | terbium(III) cation | dysprosium(III) cation | holmium(III) cation | erbium(III) cation | thullium(III) cation | ytterbium(III) cation | lutetium(III) cation | actinium cation | thorium(IV) cation | protactinium(V) cation | uranium(VI) cation (total: 20)
Ionic radii
![6-coordinate ionic radius | median | 94 pm | lowest | 73 pm (uranium(VI) cation) | highest | 117 pm (europium(II) cation) 8-coordinate ionic radius | median | 105 pm | lowest | 86 pm (uranium(VI) cation) | highest | 125 pm (europium(II) cation) 10-coordinate ionic radius | median | 125 pm | lowest | 107 pm (cerium(IV) cation) | highest | 135 pm (europium(II) cation) 12-coordinate ionic radius | median | 125.5 pm | lowest | 114 pm (cerium(IV) cation) | highest | 136 pm (lanthanum(III) cation)](../image_source/df99e2ef6c61cd21b5eb47aa22d2b0eb.png)
6-coordinate ionic radius | median | 94 pm | lowest | 73 pm (uranium(VI) cation) | highest | 117 pm (europium(II) cation) 8-coordinate ionic radius | median | 105 pm | lowest | 86 pm (uranium(VI) cation) | highest | 125 pm (europium(II) cation) 10-coordinate ionic radius | median | 125 pm | lowest | 107 pm (cerium(IV) cation) | highest | 135 pm (europium(II) cation) 12-coordinate ionic radius | median | 125.5 pm | lowest | 114 pm (cerium(IV) cation) | highest | 136 pm (lanthanum(III) cation)
Units