Not exactly as asked in the question.
But K+, Ca2+ and Ar all have the same electronic configuration. All will have a total of 18 electrons.
Sulfur needs to gain 2 electrons to have the electon configuration of Argon
The negative ion F has the same electronic configuration as the positive ion Li?
Argon
Strontium (Sr) Sr2+ ion and krypton have he same electronic configuration
Each phosphorus atom requires three electros to fill its outer valence shell, giving the resulting ion the same electronic configuration as an atom of the next heavier noble gas, argon.
The electronic configuration of calcium in calcium hydroxide is the configuration of a calcium +2 ion, which is the same as the configuration of the preceding noble gas, argon.
K+ and argon have the same electron configuration
Considering the normal calcium ion Ca2+ it has the same electronic configuration as the noble gas Argon.
1s2, 2s2 2p6, 3s2 3p6 The sulfur ion has 16 electrons but sulfide has a charge of negative 2, increasing its electron count by two for a total of 18 electrons, giving it the same electron configuration as Argon (this means it is also isoelectronic with Argon)
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 charge of a sulfide ion that is isoelectric with its nearest noble gas (argon) is -2. This means that the sulfide ion has gained two electrons in order to have the same electron configuration as the noble gas.
argon atom
Sulfur needs to gain 2 electrons to have the electon configuration of Argon
They have the same electron configuration as argon, which means they are isoelectronic with argon.
The negative ion F has the same electronic configuration as the positive ion Li?
Argon
argon