Nominal mass | Accurate mass | % Natural abundance | Chemical form | Enrichment available % |
50 Cr | 49.9460464 (17) | 4.345 (13) | metal, oxide, sulphate | 90 - 99+ |
52 Cr | 51.9405098 (17) | 83.789 (18) | metal | 99+ |
53 Cr | 52.9406513 (17) | 9.501 (17) | oxide | 97+ |
54 Cr | 53.9388825 (17) | 2.365 (7) | oxide | 93 - 94+ |
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