Given this set of quantum numbers for a multi-electron atom 2, 0, 0, and -1/2. The next higher allowed set of n and l for this atom in its ground state

Given set of quantum numbers =2, 0, 0, -1/2(n + l) = 2Next higher level will have (n + l) = 32nd option, n = 2, l = 1...(n + l) = 33rd option, n = 3, l = 0...(n + l) = 3(n + l) value same lesser the 'n' value lesser the energy, thus n = 2, l = 1 is filled