Quintal definition: a unit of weight equal to 100 pounds | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog English
Electrons in a hydrogen atom must be in one of the allowed energy levels. If an electron is in the first energy level, it must have exactly -13.6 eV of energy. If it is in the second energy level, it must have -3.4 eV of energy. An electron in a hydrogen atom cannot have -9 eV, -8 eV or any other value in between. Let's say the electron wants to jump from the first energy level, n = 1, to the second energy level n = 2. The second energy level has higher energy than the first, so to move from n = 1 to n = 2, the electron needs to gain energy.
The electrons in an atom exist in various energy levels. When an electron moves from a lower energy level to a. higher energy level, energy is absorbed by the atom. When an electron moves from a higher to a lower energy. level, energy is released (often as light). Neils Bohr was able to determine the energy levels of. hydrogen by the visible light energy that is released when. the electron drops from 3 â 2 (red light), 4 â 2 (blue-. green), 5 â 2 (blue-violet) and 6 â 2 (violet).