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

Write down the subshell electronic config-uration of Fe^(2+) .

Write the electronic configuratoin of Fe^(3+)

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

The atomic number of an element is 19. Write the subshell electronic configuration.

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?

FeCl_2 and FeCl_3 are two different chlorides of iron. [Hint : Atomic Number of Fe = 26 Oxidation state of CI = (-1) Write down the subshell wise electronic configuration of Fe^(3+)

Iron is a transition element. Iron combines with chlorine to form the compounds FeCl_2 and FeCl_3 . (Hint : Oxidation state of chlorine Cl = -1 , Atomic number of Fe = 26) a) Write down the oxidation states of Fe in FeCl_2 and FeCl_3 . b) Write the subshell electronic configuration of both of the irons in FeCl_2 and FeCl_3 . c) Give reasons for the different oxidation states of Fe.

The Atomic number of Copper is 29: Write the subshell electronic configuration of copper.

11,17,10 are the atomic number of elements X,Y and Z: Write down the oxidation numbers of the elements in the compound formed by any two of the element. Write the subshell electronic configuration of both ions.

Two compounds of iron are given below. FeSO_4 Fe_2(SO_4)_3 (The oxidation state of sulphate radical is -2): Write the subshell electronic confi-gruration of Fe^(3+) ion.