The element with the electron configuration 1s2 2s1 is lithium.
The electron configuration of lithium (Li) is 1s2 2s1, with 3 electrons distributed in the 1s and 2s orbitals. The electron configuration of fluorine (F) is 1s2 2s2 2p5, with 9 electrons distributed in the 1s, 2s, and 2p orbitals.
The He+ ion (helium ion) has the same electron configuration as an atom of helium (He) because it has lost one electron, making it a 1+ ion. Both the helium atom and He+ ion have a total of 2 electrons arranged in the 1s orbital.
Lithium ion (Li+) and beryllium ion (Be2+) have the same electron configuration as helium because they both have filled electron shells.
Li and Cl do not form an ionic bond because Li readily loses its single valence electron to achieve a stable electron configuration (Li+), while Cl readily gains an electron to achieve a stable electron configuration (Cl-). This leads to the formation of a covalent bond between Li and Cl, where they share electrons to achieve stability.
The element with the electron configuration 1s2 2s1 is lithium.
The electron configuration of lithium (Li) is 1s2 2s1, with 3 electrons distributed in the 1s and 2s orbitals. The electron configuration of fluorine (F) is 1s2 2s2 2p5, with 9 electrons distributed in the 1s, 2s, and 2p orbitals.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
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].
[He] 2s1
[He] 2s1
Both lithium (Li) and sodium (Na) have one electron in their outermost energy level, giving them similar electronic configurations. They both have an electron configuration of [Ne] 3sยน, where [Ne] represents the electron configuration of the noble gas neon.
The He+ ion (helium ion) has the same electron configuration as an atom of helium (He) because it has lost one electron, making it a 1+ ion. Both the helium atom and He+ ion have a total of 2 electrons arranged in the 1s orbital.
Lithium ion (Li+) and beryllium ion (Be2+) have the same electron configuration as helium because they both have filled electron shells.
[He] 2s1
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.
No, Li (lithium) is not magnetic because it does not have unpaired electrons in its electron configuration, which are necessary for a material to exhibit magnetic properties.