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%I #13 Oct 06 2018 09:07:38
%S 53,31,167,112,87,67,56,48,42,38,190,145,118,111,98,88,79,71,243,194,
%T 184,176,171,166,161,156,152,149,145,142,136,125,114,103,94,88,265,
%U 219,212,206,198,190,183,178,173,169,165,161,156,145,133,123,115,108,298,253,251,249,247,206,205,238,231,233,225,228,227,226,222,222,217,208,200,193,188,185,180,177,174,171,156,154,143,135,127,120
%N Calculated atomic radii (in picometers) of the chemical elements.
%C For chemical elements there are empirically measured atomic radii, calculated atomic radii, van der Waals radii and covalent radii to measure the "size" of their atoms. This sequence lists the calculated atomic radii.
%C The values for chemical elements in each period (1 - 2, 3 - 10, 11 - 18, 19 - 36, 37 - 54, 55 - 86) are decreasing except for those of some lanthanide elements.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Atomic_radius#Calculated_atomic_radii">Calculated atomic radii</a>.
%e The calculated atomic radii for hydrogen (1), helium (2) and lithium (3), etc. are 53 pm, 32 pm, 167 pm, etc.
%Y Cf. A081100, A081101 (but remember they are not based on this sequence).
%Y Cf. A319914 (covalent radius).
%K nonn,look
%O 1,1
%A _Jianing Song_, Oct 01 2018
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