The oxidation state of Cromium in the compound `Cr_2O_3` is +3: Write the subshell electronic configuration fo Cromium in `Cr_2O_3` and `CrO_3`. (Atomic numbr of `Cr-24).

The oxidation state of Cromium in the compound Cr_2O_3 is +3: What is the oxidation state of Cromium in the compound CrO_3 ?

Write the oxidation number and subshell electronic configuration K, CI and O.

The outer most subshell electronic configuration of an element is 3d^(5)4s^2 . Write the atomic number of the element.

When the element Fe with atomic number 26 undergo chemical reactions, ions with +3 oxidation state are formed. a) Write the subshell electronic configuration of Fe. b) Write the subshell electronic configuration of the ions formed during chemical reactions. c) Does the element show various oxidation states. Why?

Atomic number of iron is 26. It exhibits Fe^(2+) , Fe^(3+) oxidation state. Write the subshell elec-tronic configuration.

"_24Cr-[Ar]3d^5 4s^1 Why chromium exhibits such electronic configuration?

The outer most subshell electronic configuration of an element is 3d^54s^2 : Write the complete subshell electronic configuration of this element.

Calculate the oxidation number of Cr in Cr_2O_3 and S in H_2SO_4 .