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The group I-A and III-A group have both positive and negative oxidation state . In I-A group

H (hydrogen) has negative oxidation state and positive oxidation state.In III-A group B(boron)

performs both positive and negative oxidation states.

RGUKT IIIT NUZVID: N091528

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14y ago
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7y ago

Very many elements do. In atomic number order, they are:

Hydrogen, Carbon, Nitrogen, Silicon, Phosphorus, Sulphur, Chlorine, Manganese, Iron, Cobalt, Arsenic, Selenium, Bromine, Ruthenium, Antimony, Tellurium, Iodine, Rhenium, Osmium, Iridium, Gold and Astatine.

Oxidation states of elements 104 onwards are not known.

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the halogens

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17

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Q: Which elements show both positive and negative oxidation states?
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