Because they absorb energy.
No, when an electron jumps to a higher energy level, the atom is said to be in an excited state. The ground state of an atom is when its electrons occupy the lowest possible energy levels.
Energy must be emitted for an electron to return to the ground state. This energy typically occurs in the form of a photon--a particle/wavelet of light. Flourescent bulbs, for example, conduct a current through a gas knocking electrons into higher, more exicted orbits. As the electrons decay into lower orbits, light is emitted, producing the flourescent glow.
jumps to the a higher orbital. This is only possible if the energy it absorbed is large enough to let it jump the gap. If the energy is not large enough for the electron to jump that gap, the electron is forbidden to absorb any of that energy.
The ground state electron configuration for nitrogen is [He]2s2.2p3.
The principle quantum number of a hydrogen electron in its ground state is 1.
No, when an electron jumps to a higher energy level, the atom is said to be in an excited state. The ground state of an atom is when its electrons occupy the lowest possible energy levels.
When a hydrogen electron absorbs radiation, it moves to an excited state. The electron jumps to a higher energy level, causing the hydrogen atom to change its ground state to an excited state.
Energy must be emitted for an electron to return to the ground state. This energy typically occurs in the form of a photon--a particle/wavelet of light. Flourescent bulbs, for example, conduct a current through a gas knocking electrons into higher, more exicted orbits. As the electrons decay into lower orbits, light is emitted, producing the flourescent glow.
The lowest possible energy of an electron is called the ground state energy.
jumps to the a higher orbital. This is only possible if the energy it absorbed is large enough to let it jump the gap. If the energy is not large enough for the electron to jump that gap, the electron is forbidden to absorb any of that energy.
The electron configuration of 1s22s22p3s1 is not the ground state electron configuration of any element. This configuration contains 8 electrons, which in the ground state would be oxygen. The ground state configuration of oxygen is 1s22s22p4.
The ground state electron configuration for nitrogen is [He]2s2.2p3.
The ground state electron configuration of bromine is Ar 4s 3d 4p.
The ground-state electron configuration for the V3 ion is Ar 3d2.
This electron is in an excited unstable state.
The energy released by an electron as it returns to the ground state is equal to the difference in energy between its initial excited state and the ground state. This energy is typically released in the form of a photon with a specific wavelength determined by the energy difference.
Iodine has one unpaired electron in its ground state.