JEE Advanced2012ChemistryClassification of Elements and Periodicity in PropertiesActual
The periodic table consists of 18 groups. An isotope of copper, on bombardment with protons, undergoes a nuclear reaction yielding element X as shown below. To which group, element X belongs in the periodic table? ₂₉⁶³ Cu + ₁¹ H 6₀¹ n+ ₂⁴ +2 ₁¹ H + X
Correct answer
8
Step-by-step solution
₂₉⁶³ Cu + ₁¹ H 6 ₀¹ n+ ₂⁴ He +2 ₁¹ H + _ Z ^ A X Balancing the atomic mass and atomic number 63+1=(6 1)+4+2+A A=5229+1=(6 0)+2+2+Z Z=26 Thus _ Z ^ A X= ₂₆⁵² X or ₂₆⁵² Fe Hence, X belongs to group 8 in the periodic table.