The number of electrons in a completely filled second shell of an atom will be 8.
The basic number of ordinary components that make up a chemical element is just an atom.
As per Bohr's atomic model, electrons orbit or shell surrounding the nucleus in a precise circular path.
It is known that by the electronic configuration atoms posses 2,8,18,32.
Hence, there are 8 electron will be found in second shell of the atom.
The number of electrons in a completely filled second shell of an atom will be 8.
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