What is Excited state?
When an [[electron]] is transferred from its [[ground state]] to other upper energy levels (called excited state of an electron) by providing heat [[enthalpy]] then the [[atom]] is said to be in excited state. An atom is not stable in its excited state. It needs to be in its ground state (which is also its [[energy level]] with highest magnitude) to be stable. [[Category:Basic physics ideas]] [[Category:Quantum mechanics]]