In writing the electron configuration for Potassium the very first two electrons will certainly go in the 1s orbital. Because 1s can only host two electrons the next 2 electrons for Potassium walk in the 2s orbital. The following six electrons will go in the 2p orbital. The p orbital can hold up to 6 electrons. We'll put six in the 2p orbital and also then put the following two electrons in the 3s. Since the 3s if now full we'll move to the 3p whereby we'll location the following six electrons. We now shift to the 4s orbital wherein we location the remaining electron. Because of this the Potassium electron configuration will certainly be 1s22s22p63s23p64s1



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

Chemistry | Concise Chemistry traditional IX

Choose the correct option

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

A. Electron                             B. Proton

C. Atom nucleus                 D. Neutron 

(b) number of valence electron in O2− is :

A. 6                                        B. 8

C. 10                                      D. 4

(c) i m sorry of the complying with is the correct electronic configuration that potassium ?

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

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