JEE Mains Chemistry Past PapershardNUMERICAL

Niobium (Nb) and ruthenium (Ru) have "x" and "y" number of electrons in their respective 4d orbitalsJEE Mains Chemistry Past Papers Chemistry Question

Question

Niobium (Nb) and ruthenium (Ru) have "x" and "y" number of electrons in their respective 4d orbitals. The value of x + y is ________.

Answer: .

💡 Solution & Explanation

41Nb[Kr]4d4, 5s1 44Ru[Kr]4d7, 5s1 Number of electrons in 4d = 4 + 7 = 11

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