The electronic configuration of potassium is $2, 8, 8, 1$ and not $2, 8, 9$ .

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Solution

According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). Hence, the electronic configuration of potassium is $2, 8, 8, 1$ and not $2, 8, 9$ .

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Similar questions

Write the electronic configuration of $_{19} K^{40}$ .

The valency of the element having electronic configuration 2,8,8,1 is –

Choose the correct option

(a) Rutherford's alpha-particle scattering experiment discovered

A. Electron B. Proton

C. Atomic nucleus D. Neutron

(b) Number of valence electrons in $O^{2 -}$ is :

A. 6 B. 8

C. 10 D. 4

A. 2, 8, 9 B. 8, 2, 9

C. 2, 8, 8, 1 D. 1, 2, 8, 8

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