Number of Bromine atoms in `Br_3O_8` with +4 oxidation state is(are)

The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . In 3d series, the maximum oxidation state is shown by

The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . Identify the correct statement

The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . In which of the following pairs , the first species is more stable than second one

The atomic number of an element which can not show the oxidation state of +3 is-

Oxidation state of O in KO_(2) is

In Br_(3)O_(8) , oxidation numbers of three bromines are

Oxidation number of bromine in sequence in Br_(3)O_(8) is

In the conversion fo Br_2 to BrO_3^(-) , the oxidation state of Br changes from.

Electronic configuration of a transition element X in + 3 oxidation state is [Ar]3d^5 What is its atomic number?

Among the following, what is the total number of compounds having +3 oxidation state of the underlined elements? K_(4)ul(P_(2))O_(7) ul(O)F_(2) ul(N)O_(2)^(ө)