Its valence shell is full.
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∙ 7y agoBecause it is a noble gas, it is no reactive, as all its electron shells are filled.
Na+ and neon are isoelectronic.
Aron is nonreactive because it has no free electrons it is stable and even as it is a noble gas.
The electron shell arrangement of Ceasium is 2.8.8.18.18.1
Phosphorus
Argon
Argon
Because it is a noble gas, it is no reactive, as all its electron shells are filled.
Na+ and neon are isoelectronic.
Na+ and neon are isoelectronic.
Argon is nonreactive, including with itself.
It doesn't become an argon atom because it (Cl-) still has 17 protons, and an argon atom has to have 18 protons.
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 gases have a stable electron arrangement and so do not need to react to achieve stability
Noble(nonreactive) gases like argon
Aron is nonreactive because it has no free electrons it is stable and even as it is a noble gas.
Noble gases Eg:-Helium,Neon,Argon,Xenon,Radon