Question

the energy of level n=∞ in H-atom is???

Answer 1

Answer:

This is the energy difference between the ground state (lowest energy) n=1 and the final state in which the electron is separated from the nucleus. The electron separated from the nuclear corresponds to n=∞ . The energy for n=∞ is zero.

Answer 2

ANSWER :

For hydrogen (Z=1), the energy levels start at n=1 with a value of -2.18 x 10-18J. Then energies are negative as we have defined E=0 as the energy of the electron and the nucleus at a distance of infinity. The electron is more stable (lower in energy) when it is closer to the nucleus.