hi it is a aton that is special
The negative ion F has the same electronic configuration as the positive ion Ne. This is because the negative ion F gains an electron to achieve a stable octet configuration, similar to the stable electronic configuration of the noble gas Ne.
The electronic configuration of sulfur ion (S)2- is: 1s22s22p63s23p6.
The electronic configuration of potassium, K, is [Ar]4s^1. When potassium loses one electron to become a K+ ion, the electronic configuration changes to that of argon [Ar].
Oxide - O2- electronic configuration of oxygen atom: 1s2, 2s2 2p4. electronic configuration of oxygen ion: 1s2, 2s2 2p6. phosphate - PO43-
K+ is 18 electrons 1s2 2s2 2p6 3s2 3p6
The electronic configuration of calcium is 1s2 2s2 2p6 3s2 3p6 4s2. In calcium hydroxide (Ca(OH)2), calcium loses its two outer electrons to form Ca2+ ion, which has the electronic configuration 1s2 2s2 2p6 3s2 3p6.
The element that forms a 2+ ion with the same electronic configuration as Ar is Calcium (Ca). When Calcium loses two electrons, it attains the same electronic configuration as argon by having a full outer shell of electrons.
The element that forms an ion with an electronic configuration of Ar with a -2 charge is oxygen (O). When oxygen gains two electrons, it achieves a stable electron configuration similar to argon.
Oxygen
[Ne] 3s2 3p5 is the electronic configuration for neutral Chlorine. Its -1 ion, however is: [Ne] 3s2 3p6 or [Ar].
The chloride ion (Cl-) has an electron configuration of [Ne] 3s2 3p6, which represents the configuration of a neutral chlorine atom with two additional electrons to achieve a stable octet configuration.
The given electron configuration corresponds to the ion with a charge of -2, which is the oxide ion (O^2-). This ion is formed by the element oxygen when it gains two electrons to achieve a stable electronic configuration.