Value for Bohr radius
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000036
standard uncertainty SN: 3.6E-20
value: 0.000000000052917720859
value SN: 5.2917720859E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid