Q

Which of the following electron configurations is NOT possible according to the Bohr-Bury rules?

RRB NTPC (G) CBT-2, 13-Oct-25 S-2 2025
✓ Answer: C 2, 9, 7
According to the Bohr-Bury rules for electron distribution: Maximum electrons in the nth shell = 2n^2. The outermost shell (valence shell) cannot have more than 8 electrons. The penultimate shell cannot exceed 18 electrons; and the outermost cannot exceed 8 unless certain inner shells are filled.
← Previous Question Next Question →

📚 Related Questions — Matter, Atom and Molecules

1 In a homogeneous mixture, the size of particles of solute is typically: 2 Precipitation reactions are a specific class of ________. 3 What is the process called when a substance’s spontaneous movement from a… 4 The formation of water from hydrogen and oxygen is an example of… 5 A solution contains 48 g of common salt in 320 g of… 6 The volume of a gas is inversely proportional to: