TABLE II: Contributions of the individual terms to the screened self-energy and vacuum-polarization cor- rections to the hyperfine splitting of Li-like bismuth 209 Bi 80+ in terms of x$_{SQED}$ . Screened SE Screened VP Feynman Coulomb Feynman Coulomb A 0.001544 0.001555 A − 0.0004881 − 0.0004892 B − 0.000380 − 0.000398 B − 0.0002128 − 0.0002103 C 0.001928 0.001952 C − 0.0001691 − 0.0001669 D − 0.000936 − 0.000945 D — — E 0.000028 0.000028 E − 0.0000031 − 0.0000029 F − 0.000174 − 0.000172 F 0.0000015 — G − 0.001298 − 0.001307 G 0.0002766 0.0002749 H 0.000331 0.000331 H 0.0000023 0.0000001 I 0.000066 0.000066 I 0.0000000 — Total SE 0.001109 0.001109 Total(A-I) − 0.0005927 − 0.0005927 WK-ml 0.00005(2) Total VP − 0.00054(2) 27