| 2 Electrons | 4 Electrons | 10 Electrons | |||||||
| Z | Eqn (5) | Ref [21] | Diff | Eqn (5) | Ref [21] | Diff | Eqn (5) | Ref [21] | Diff |
| 2 | −0.00009 | −0.00007 | --- |
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| 3 | −0.00060 | −0.00054 | --- |
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| 4 | −0.0022 | −0.0021 | −5% | −0.0022 | −0.0022 | 0% |
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| 5 | −0.0057 | −0.0057 | 0% | −0.0060 | −0.0062 | 3% |
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| 6 | −0.0125 | −0.0125 | 0% | −0.0135 | −0.0141 | 4% |
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| 7 | −0.0242 | −0.0243 | 0% | −0.0268 | −0.0280 | 4% |
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| 8 | −0.0426 | −0.0429 | 1% | −0.0481 | −0.0503 | 4% |
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| 9 | −0.0699 | −0.0706 | 1% | −0.0802 | −0.0839 | 4% |
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| 10 | −0.1088 | −0.1099 | 1% | −0.1264 | −0.1320 | 4% | −0.1276 | −0.1313 | 3% |
| 11 | −0.1620 | −0.1637 | 1% | −0.1903 | −0.1983 | 4% | −0.1982 | −0.2007 | 1% |
| 12 | −0.2328 | −0.2352 | 1% | −0.2759 | −0.2869 | 4% | −0.2960 | −0.2951 | 0% |
| 13 | −0.3248 | −0.3279 | 1% | −0.3878 | −0.4022 | 4% | −0.4274 | −0.4200 | −2% |
| 14 | −0.4417 | −0.4457 | 1% | −0.5309 | −0.5493 | 3% | −0.5997 | −0.5815 | −3% |
| 15 | −0.5878 | −0.5927 | 1% | −0.7106 | −0.7334 | 3% | −0.8208 | −0.7862 | −4% |
| 16 | −0.7676 | −0.7735 | 1% | −0.9326 | −0.9603 | 3% | −1.0994 | −1.0413 | −6% |
| 17 | −0.9860 | −0.9928 | 1% | −1.2032 | −1.2363 | 3% | −1.4450 | −1.3544 | −7% |
| 18 | −1.2483 | −1.2557 | 1% | −1.5291 | −1.5679 | 2% | −1.8676 | −1.7339 | −8% |