1s^2 2s^2 2p^2 3s^2
1s2 2s2 2p4
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.
1s2 2s1 2p3 3s1
The electron configuration for an O2- ion is 1s22s22p6 just like the noble gas neon.
When is goes to the excited state is jumps an energy level, not just a subshell.
Ground state: 1s2 2s2 2p5Excited state: 1s2 2s2 2p4 3s1In the excited state, one of the 2p electrons jumped into a 3s orbital. This is unstable, and the electron will jump back down, releasing energy in the same amount of energy that was required to excite the electron initially.
The electron configuration of calcium is [Ar]4s2.
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.
ground state
[Ar],4s2,3d9
It depends on the atom. For example, the electron configuration of an atom of boron in the ground state is 2-3. In the excited state, it would be 2-2-1. For an atom of chlorine, the ground state configuration is 2-8-7. The excited state would be 2-8-6-1. When an atom enters the excited state, an electron moves up to a higher energy level and releases energy. An electron in the excited state is not stable until it returns to ground state.
1s2 2s1 2p3 3s1
It is the electron configuration of a neutral, not excited atom.
The electron configuration for an O2- ion is 1s22s22p6 just like the noble gas neon.
When is goes to the excited state is jumps an energy level, not just a subshell.
1s2 2s2 2p6 3s1 3p1
1s2 2s2 2p6 3s2 3p3 4s1
The groundstate for Sodium (11-Na) is: 1S2 , 2S2, 2P6, 3S1 If you count the ^powers you notice it'll sum to 11, when Sodium is excited the outermost electron (3S1) will be excited from the 3S shell to the next shell up which is the 3P shell. The "core" electron configuration doesn't change so the first excited state is simply: 1S2 , 2S2, 2P6, 3P1 For the next excited state the electron that is now in the 3P shell will transition to the 4S shell before the 3D shell