The oxidation state is 1.
There are no such metals whose common oxidation state is -2
why do alkali metels not show +2 oxidation state
They all reside in group 1 in the Periodic Table, they all belong to the Alkali Metal family, and they have an oxidation state of 1.
A pure metal has the oxidation state zero.
Selenium's most common oxidation state is -2, as it is both a non metal, and is located in the periodic table in the same group as O and S.
When the metal can exist in more than one oxidation state
The rule for hydrogen is that it normally has an oxidation state of +1, EXCEPT in metal hydrides, when it has an oxidation state of -1.Li is a metal, LiH is a metal hydride.Does that tell you what you need to know?
The question should be either 'alkali metals' or 'alkaline earth metals'. For alkali metals or group 1 elements, the oxidation number is +1 (note. hyddrogen can have +1 and -1). For alkaline earth metals, the oxidation number is +2 In addition all these elements will have an oxidation number of 0 in their elemental form
The subscript of the second ion identifies the oxidation state of the transition metal
The oxidation state of a metal is indicated in the name of a compound if and when that metal has more than one oxidation states. The oxidation state is then indicated by a Roman numeral placed in parenthesis next to the metal (Stock System).
Iron has oxidation state of -2, in the Tetracarbonyl Ferrate ion
Zinc commonly exists in compounds in the +2 oxidation state only, and as a metal with an oxidation state of 0.0, 1 and 2 oxidation states