### Some articles on *radii*:

Lanthanide Contraction - Effects - Influence On The Post-lanthanides

... The

... The

**radii**of the period-6 transition metals are smaller than would be expected if there were no lanthanides, and are in fact very similar to the**radii**of the period-5 transition ... The**radii**are very similar even though the number of electrons increases from 40 to 72 and the atomic mass increases from 91.22 to 178.49 g/mol ... The increase in mass and the unchanged**radii**lead to a steep increase in density from 6.51 to 13.35 g/cm3 ...List Of Elements By Atomic Properties - Table

... Pauling) First Ionization Energy (eV) Atomic

... Pauling) First Ionization Energy (eV) Atomic

**radii**(pm) Van der Waals**radii**(pm) Covalent**radii**(pm) Valence electrons 1 Hydrogen 1.00794(7)2 4. 2.2 13.59844 2 ... Helium 4.002602(2)2 4 ...Metallic Bond - Metallic Radius

... size of atoms it is often desirable to apply so-called Goldschmidt correction, which converts the

... size of atoms it is often desirable to apply so-called Goldschmidt correction, which converts the

**radii**to the values the atoms would have if they were 12-coordinated ... Since metallic**radii**are always biggest for the highest coordination number, correction for less dense coordinations involves dividing by x, where 0 < x < 1 ... The**radii**follow general periodic trends they decrease across the period due to increase in the effective nuclear charge, which is not offset by the increased number of valence ...Platonic Solid - Geometric Properties -

... The

**Radii**, Area, and Volume... The

**radii**of these spheres are called the circumradius, the midradius, and the inradius ... That is, The following table lists the various**radii**of the Platonic solids together with their surface area and volume ...Malfatti Circles - Radius Formula

... The formulae for the three

... The formulae for the three

**radii**are and According to StevanoviÄ‡ (2003), these formulae were discovered by Malfatti and published posthumously by him in 1811 ... find examples of triangles whose side lengths, inradii, and Malfatti**radii**are all rational numbers or all integers ... with side lengths 28392, 21000, and 25872 has inradius 6930 and Malfatti**radii**3969, 4900, and 4356 ...