An ion with mass number 56 contains 3 units of positive charge and 30.4 % more neutrons than electrons. Assign the symbol to this ion

An ion with mass number 56 contains 3 units of positive charge and 30.

1.	An ion with mass number 56 contains 3 units of positive charge and 30.4 % more neutrons than electrons. Assign the symbol to this ion
Answer» Solution :Suppose number of electrons in the ION, `M^(3+) = X :.` No. of NEUTRONS `= x + (30.4)/(100) x = 1.304 x` No. of electrons in the nuetral atom `= x + 3 " " :.` No. of protons `= x + 3` Mass no. = No. of protons + No. of neutrons `56 = x + 3 + 1.304 x or 2.304 x = 53 or x = 23 " " :.` No. of protons = Atominc no. `= x + 3 = 23 + 3 = 26` HENCE, the symbol of the ion will be `._(26)^(56)Fe^(3+)`