Write electronic configuration of Fe, `Fe^(2+)`, `Fe^(3+)`

Write the electronic configuration of actinide.

Write the electronic configuration of Mn^(+6) ,Mn^(+4),Fe(4+),Co(3+),Ni(2+) .

The d-electron configuration of Cr^(2+), Mn^(2+) , Fe^(2+) , Co^(2+) , are d^4 , d^5, d^6 and d^7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour ? (At. No. Cr=24 , Mn=25 , Fe=26, Co=27)

Write the electronic configuration of group 2 elements.

Write the reaction of formation of Fe^2+) by the reduction Fe3+ by making use of the symbol(e)?

Balance the following redox reactions by ion- electron method: H_2O_2 (aq) + Fe^(2+) (aq) rarr Fe^(3+) (aq) + H_2O (l) (in acidic solution)

For which of the following pairs, indicate which of the two species is of large size : Fe^(2+) or Fe^(3+) b. Mg^(2+) or Ca^(2+)

Following reaction describes the rusting of iron. 4Fe +3O_(2) rarr 4Fe^(3+) + 6O^(2-) Which one of the following statements is INCORRECT ?

Write Nernst Equation for the following reactions:- Cr(s) + 3Fe^(3+)(aq) rarrCr^(3+)(aq) + 3Fe^(2+)(aq)

A voltaic cell consisting of Fe^(2+)_((aq)) I Fe_((s)) and Bi^(3+)_(aq) I Bi(s) electrodes is constructed. When the circuit is closed mass of Fe electrode decreases and that of Bi electrode increases: Write cell formula.