Generally third A group elements in the Periodic Table exhibit +3 oxidation state but Boron
exhibit negative oxidation state also . The stable oxidation state of Tl is +1. It exhibit +3 also
but +1 is more stable than +3.
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Boron have negative oxidation state in the III-A group elements because "generally metals have positive oxidation state . except Boron all elements of the III-A group elements are metals. Boron is a non-metal so it have positive and negative oxidation states "
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d u n n o
-1.
In English please ?I
the oxidation number, determined by its group on the periodic table.
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.
elements in group Ia - IVa have an oxidation number equal to the positive number of the group.example oxidation of K = +1, K is in group 1. elements in group Va - VIIa have an oxidation number equal to the group number minus 8. for example oxidation of O is -2, group number 6a minus 8 equals -2. as for the rest of the elements in groups 1b to 8b i have no idea and am searching for the answer.
-1.
In English please ?I
the oxidation number, determined by its group on the periodic table.
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.
-1 is most common, though oxidation number up to +7 are known (except for fluorine)
The vertical columns of the periodic table are called groups. The horizontal rows of the periodic table are called periods. The number of electron shells an atom has corresponds to the number period of the periodic table it is located in. The oxidation number or number of valence electrons an atom is depicted by the group it is in. For example: Calcium (Ca) has an oxidation number of +2 and has 2 valence electrons( outermost electrons) which means it belongs to group 2 of the periodic table called the "alkali earth metals".
-3, +3, +5 are most common
the oxidation number, determined by its group on the periodic table.
Strontium is located in group 2 of the periodic table. Hence it has two valence electrons. The oxidation number atomic strontium is 0 where that of strontium ion is +2.
Elements in group 2 mostly takes the oxidation number +II.
Group 1 elements are the most electropositive in nature and have only 1 valence electron. So, they always show the oxidation state of +1.
All alkali metals easily obtain +1 oxidation state. They are in group 1 of periodic table. They donate their outermost electron to form a positive ion which has +1 oxidation status.