Li, Be, O: the first term in the abridged electron configuration is [He]. Ca, K: the first term in the abridged electron configuration is [Ar].
K+ and argon have the same electron configuration
In the shorthand method for showing electron configuration, the noble gas preceding the element is used to indicate the core electrons (inner shell electrons), while the valence electrons are indicated by the remaining electron configuration. For example, the electron configuration of potassium (K) can be written as [Ar] 4sยน, where [Ar] represents the noble gas core configuration (argon's electron configuration).
The electron configuration of hydrogen is 1s1, indicating that it has one electron in its 1s orbital.
The electron configuration for germanium is [Ar]3d10.4s2.4p2.
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.
Li, Be, O: the first term in the abridged electron configuration is [He]. Ca, K: the first term in the abridged electron configuration is [Ar].
When potassium achieves a noble gas electron configuration, it loses one electron to form the K+ ion. The K+ ion has a stable electron configuration similar to that of argon, with 18 electrons.
The ion formed when potassium achieves noble-gas electron configuration is K+ (potassium ion). This occurs when potassium loses one electron to have a full outer electron shell, similar to the nearest noble gas, argon.
The element with the electron configuration 2s1 is lithium (Li). However, there is no element with the electron configuration S2d1 as "S" and "d" are not valid subshells in the electron configuration notation based on the periodic table.
K+ is 18 electrons 1s2 2s2 2p6 3s2 3p6
The electron configuration for a potassium ion (K+) is [Ar] 4s1. Potassium loses one electron to form the +1 ion, resulting in a noble gas configuration like argon.
1s2 2s2 2p6 3s2 3p6
K+ and argon have the same electron configuration
The chloride ion (Cl-) has the same electron configuration as argon, which is 1s2 2s2 2p6 3s2 3p6. This is because the chloride ion has gained an extra electron compared to argon, giving it a full outer electron shell.
The element with the ground-state electron configuration of Ar4s23d6 is iron (Fe) with atomic number 26.
Iron has the electron configuration [Ar]3d64s2.