In a potassium atom , electronic energy levels are in the following order (a) 4s>3d (b) 4s>4p (c) 4s<3d (d) 4s<3p electronic energy levels are in the following order (a) 4s>3d (b) 4s>4p (c) 4s<3d (d) 4s<3p In a potassium atom November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) [...]