| 1. | In the trivalent state, arsenic shows some incipient metallic properties.
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| 2. | Oxygen can also be trivalent, for example in triethyloxonium tetrafluoroborate.
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| 3. | Trivalent ( ferric ) iron may replace some of the aluminum.
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| 4. | Bismuth molecules have the ability to form trivalent or pentavalent compounds.
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| 5. | Trivalent chromium occurs in trace amounts in foods, wine and water.
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| 6. | Cleve, in collaboration with H�glund prepared numerous previously-undiscovered trivalent.
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| 7. | There are three main types of trivalent chromium bath configurations:
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| 8. | There is some confusion about whether the oxidised manganese is tetravalent or trivalent.
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| 9. | From a health standpoint trivalent chromium is intrinsically less toxic than hexavalent chromium.
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| 10. | The trivalent inactivated influenza vaccine is protective in pregnant women infected with HIV.
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