Muon radiative energy loss (in 1.0E06 cm^2/g) in element 113 (Un) with Z = 113, A = [284.178(6)] (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 2.6036 -0.0276 0.3520 2.9281 5. 3.6276 2.0222 0.3757 6.0254 10. 4.4656 3.6240 0.3684 8.4580 20. 5.3256 5.0611 0.3555 10.7421 50. 6.4478 7.2944 0.3411 14.0834 100. 7.2425 8.7574 0.3343 16.3342 200. 7.9636 10.0442 0.3311 18.3389 500. 8.7663 11.2138 0.3313 20.3114 1000. 9.2450 11.8287 0.3364 21.4101 2000. 9.6140 12.2694 0.3444 22.2278 5000. 9.9529 12.6362 0.3590 22.9480 10000. 10.1189 12.8044 0.3735 23.2968 20000. 10.2281 12.9143 0.3903 23.5328 50000. 10.3255 12.9952 0.4167 23.7374 100000. 10.3573 13.0288 0.4393 23.8253