The effective atomic number of iron in complex `[eta^5-C_5H_5)Fe(II)(CO)_2Cl]` is .

Answer

36

Explanation

`{:(Fe(II)=,"24 electrons"),((eta^(5)-C_5H_5^(-))=,"6 electrons"),(2(CO)=,"4 electrons"),(Cl^(-)=,"2 electrons"):}`
36