Krypton.
No element has the exact same election arrangement as another element. However ion can have the same election arrangement as another element. For example Chloride (Cl-) has the same configuration as Argon, and Potassium (I) (K+) also has the same configuration as argon.
The noble gas that has the same electron configuration as a chloride ion is Aragon.
Chloride anion Cl- has the same electron configuration as Argon (its succeding noble gas) so:Cl- has 18 electrons configured like: 1s2, 2s2 2p6, 3s23p6
Not a neutral Cl atom but the chloride ion Cl- is isoelectronic with the noble gas argon.
no. chlorine is a halogen (a group 17 element) and not a noble gas (a group 18 element). However chloride ion will have the same electronic configuration as the noble gas, argon
The electron configuration of the chloride ion is: [Ne] 1s2.2s2.2p6.3s2.3p6.
An ion of bromine has the electron shell arrangement of 2, 8, 18, 7. Therefore, an atom that has the same electron shell arrangement would be one that has 35 electrons, such as the element bromine itself before it becomes an ion with a charge of -1.
Krypton has the same electron arrangement as Sr2. Both have a total of 36 electrons arranged in outer shells with the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6.
The electronic structure of a chloride ion (Cl-) is the same as that of a neutral chlorine atom. Chloride ions are commonly found in the ground state, with the electrons filling the 1s, 2s, 2p orbital levels. The energy levels are determined by the arrangement of electrons in the ion.
That is correct. A noble gas (or at least all the noble gas elements heavier than helium) has an electron configuration of 8 electrons in its outer shell, and the sodium and chlorine ions in sodium chloride also have 8 electrons in their outer shell, just like a noble gas atom.
The noble gas configuration for oxygen is [He] 2s2 2p4, which means that it has the same electron configuration as neon except with two additional electrons in the 2p orbital. This configuration reflects the stable arrangement of electrons in the outer shell of oxygen, similar to a noble gas.
No, the electron configuration for an ion is not always the same as that of its nearest noble gas. When an atom loses or gains electrons to form an ion, its electron configuration changes. For example, a sodium ion (Na⁺) has the electron configuration of [Ne], which is the same as neon, but a chloride ion (Cl⁻) also has the same configuration as argon ([Ar]). Thus, while some ions can have configurations similar to noble gases, this is not universally true for all ions.