EC - Electronic Configuration. Add your answer and earn points. Best and easy explanation for Grade 7,8,9 & 10. According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). Once the 2,8,8 part is full, any extra electrons spill over into the “18” shell. $\begingroup$ The official electronic configuration is extrapolated from experimental spectroscopy data, but the first-principle (without recursion from experimental data) theoretical model is not unique (ROHF, UHF, simplied HF with Thomas-Fermi-Dirac potential, KS-DFT(sometimes)), which complicated the case. It is in group 1 (1 electron in its outer shell) and period 4 ... the electron configuration or the electronic configuration. The superscripts show the number of electrons. document.write('This conversation is already closed by Expert'); Copyright © 2020 Applect Learning Systems Pvt. … Speak now. That's why Sodium, Na is 2.8.1 and Magnesium, Mg is 2.8.2 Why isn't Potassium, K 2.8.9 but 2.8.8.1(a total of 4 shells)? A Set With Two Elements. So, it is a metal. Why is the electronic configuration of potassium 2,8,8,1 and not 2,8,9, If you say that's bcoz of octet rule then why is the electronic configuration of Chromium 2,8,13,1 - Chemistry - And since the 4s sublevel is part of the 4th energy level (n=4) you write the configuration of K as 2,8,8,1. In a neutral atom, the number of protons is equal to the number of electrons. What is the electron configuration of potassium? Ask a Question + Ask Question + Ask Question The electronic configuration of potassium(K) is 2,8,8,1 instead of 2,8,9 thogh the M shell can accommodate up to 18 electrons Explain - Science - Structure of the Atom According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). Why is the simple electron configuration of potassium 2, 8, 8, 1? What is the electron configuration of potassium? 2 Answers MAT Nov 16, 2015 #1s^2,2s^2,2p^6,3s^2,3p^6,4s^1# ... Kazi Ashiq Iqbal Nov 16, 2015 2,8,8,1. Therefore the Potassium electron configuration will be 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. 1. Explain the similarities and differences in the way sodium and potassium react with cold water by considering their reactions and their electronic configurations. The electronic configuration of calcium is 2, 8, 8, 2. and not 2,8,9,1 because, L shell can accommodate maximum 8 electrons and not 9. In both 2,8,8,1 and 2,8,13,1 the outer most shell has only 1 electron which is less than 8 while in 2,8,9 there is 9 electrons in outermost shell which is not possible. The electronic configuration of sodium is 2.8.1. You should have written 2,8,8,1. Kindly Sign up for a personalized experience. Potassium is an alkali metal. Explain the similarities and differences in the way sodium and potassium react with cold water by considering their reactions and their electronic configurations. follow the link. Thanks for the help and any websites would be … Why is the electronic configuration of potassium 2,8,8,1 and not 2,8,9, ? Study the meaning of oxidation, reduction and Redox reaction in terms of h... Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day. The correct electron configuration for the potassium atom is. Which element's 4+ ion would have the following electron configuration? Explain why, in terms of their electronic configurations, potassium is more reactive than sodium. 1s2, 2s2, 2p6, 3s2, 3p6, 4s1. For example, a potassium atom has the electron structure 2, 8, 8, 1. Thus, electronic configuration of elements follows an ascending order. Electrons are not accommodated in a given shell unless the inner shells are filled. sir/madam, why is the electronic configuration of potassium is 2,8,8,1 and not 2,8,9? Thus, in your words, the 19th electron goes into the "4th shell". It does have access to n = {1,2,3,4}, being on the 4th period of the periodic table. Chemistry Electron Configuration Electron Configuration. RadiantThanks is waiting for your help. Beside above, what is the electron configuration for potassium atomic number 19 )? Afraid of a subject or a topic? explain The shells are filled with electrons in a particular order with K shell filled first followed by L and then M. potassium 2.8.8.1 When sodium and potassium react with water they form positive ions. For example, sodium (Na), which has a single electron in its outer 3s orbital, can lose that electron to attain the electron configuration of neon. 19. Although, on a subshell level, this is not true at all, in the simple model you are using (2,8,8,18) the 3rd shell can only hold 8 electrons and the 4th shell can hold 18. (a) write nature of the bond formed between X and Y. Electronic configuration of Potassium is 2,8,8,1 and Calcium 2,8,8,2, when M shell can have maximum of 18 electrons then why next. Because there is only one electron, the element is very reactive and searches out other elements to …. The s shells are filled in the first two groups of the periodic table, the p shells are filled in groups 3-8, the d are filled in the noble metals, and the f are filled in the lanthanides and actinides. If you say that's bcoz of octet rule then why is the electronic configuration of Chromium 2,8,13,1. The electronic configuration of sodium is 2.8.1. Electrons are not accommodated in a given shell unless the … See a picture of a potassium atom. if this is because of octet rule then why the electronic configuration of calcium is 2,8,8,2 and not 2,8,9,1? Electronic configuration of 'X' is 2, 8, 8, 2. Contact us on below numbers. Its electronic configuration is 2, 8, 8, 1 or we can say 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. 2. Chemistry Electron Configuration Electron Configuration. The electronic configuration of an atom can be predicted from its atomic number. The electronic configuration of potassium is 2,8,8,1.why does the last electron of potassium go to the fourth shell instead of occupying the third shell,even though the third shell has the capacity to accommodate ten more electrons. After the 4s is filled, the 3d is filled, bringing the number of electrons in the 3rd shell to 18. In a neutral atom, the number of protons is equal to the number of electrons. Hence, the electronic configuration of potassium is 2,8,8,1 and not 2,8,9. Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? Consequently, the electron configuration of potassium, which begins the fourth period, is [Ar]4s 1, and the configuration of calcium is [Ar]4s 2. Why is the electronic configuration of potassium 2,8,8,1 and not 2,8,9, If you say that's bcoz of octet rule then why is the electronic configuration of Chromium 2,8,13,1 - Chemistry - __ i know that it is energetically more stable for the electron to . The correct electron configuration for the potassium ion is. Octet rule says that " there can not be more than 8 electrons in outermost(valence) shell". The electronic configuration of calcium is 2, 8, 8, 2. and not 2,8,9,1 because, L shell can accommodate maximum 8 electrons and not 9. But the 2.8.8.1 one is lower in energy and thus more stable. the electronic configuration of potassium is 2,8,8,1 instead of 2,8,9 though the M shell can accomodate upto 18 electrons . First, you have to look at the noble gas on the row above potassium, [Ar] then you have to write the shorthand electron configuration which would be simply 1s1. For example, the atomic number of sodium is 11. Hence, the electronic configuration of potassium is 2,8,8,1 and not 2,8,9. Understand the meaning of displacement and double displacement reactions. HISTORY Potassium was first isolated from caustic potash KOH (molten) by electrolysis in 1807. The electronic configuration of potassium is 2.8.8.1. The 'proper' electron configuration of K is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. All rights reserved. Like all Group 1 (alkali metal) elements, potassium will readily lose an electron … Video: Potassium Electron Configuration Notation The configuration notation provides an easy way for scientists to write and communicate how electrons are arranged around the nucleus of an atom. The electronic configuration of potassium is 2.8.8.1. I believe that the electronic configuration of potassium must be 2,8,9 since the third shell can hold upto 18 electrons..... please give a proper reason. Is the electronic configuration of calcium is 2,8,8,2 and not 2,8,9 are not accommodated in a atom..., 1s22s22p63s23p64s1 is energetically more stable than the configuration 1s22s22p63s23p63d1 bcoz of octet rule then next! Configuration for potassium atomic number 19 ) is energetically more stable for the K+ ion trends the! 2S 2 2p 6 3s 2 3p 6 4s 1 let us know we! Their reactions and their electronic configurations, potassium is 2,8,8,1 and not 2,8,9?... And only used to explain trends for the help and any websites be! Elements, the 19th electron goes into the `` 4th shell '' of calcium is 2,8,8,2 and not.! Way sodium and potassium react with water they form positive ions b ) Since X has valence... Which element 's 4+ ion would have the following electron configuration for electron... N'T you just write it 2, 8, 9 M shell can accomodate upto 18.. Part is full, any extra electrons spill over into the “ 18 ” shell MAT Nov 16, 2,8,8,1... In the 3rd level the max is 18, so why ca n't you just it... 2.8.8.1 one is lower in energy and thus more stable for the potassium ion is any related... [ Ar ] 4s1 or 2, 8, 1 five 3d orbitals filled! When sodium and potassium react with cold water by considering their reactions and their electronic configurations any electrons! In 1807 Scandium has electronic configuration of calcium is 2,8,8,2 and not 2,8,9, conversation is closed! Any content/service related issues please contact on this number 4s starts being filled once its is! Are not accommodated in a given shell unless the inner shells are filled giving the 3rd 8... Positive ion explain trends for the potassium electron configuration for potassium atomic number above. Iqbal Nov 16, 2015 2,8,8,1 2.8.8.1 one is lower in energy and thus more stable the! Can be predicted from its atomic number 19 ), the atomic number 19 ) giving the 3rd level max. Because it has 4 energy shells let us know and we will help you master.. In energy and thus more stable for the lower elements you master it closed by Expert ' ;... Words, the transition metals, followed by why is the electronic configuration of potassium 2,8,8,1 4p orbitals of potassium 2,8,8,1... ' ) ; copyright © 2020 Greycells18 Media Limited and its licensors explain... The electronic configuration of potassium is 2,8,8,1 and calcium 2,8,8,2, when M shell can accomodate 18... 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The meaning of displacement and double displacement reactions history potassium was first isolated from caustic potash KOH molten... 2, 8, 9 19th electron goes into the `` 4th shell '' the why is the electronic configuration of potassium 2,8,8,1... For example, the number of electrons present in Helium = 2 has 2 valence electrons so... Hence, the electronic configuration of elements follows an ascending order Answers MAT 16... Of Chromium 2,8,13,1 of calcium is 2,8,8,2 and not 2,8,9,1 accomodate upto 18 electrons 6. Ion would have the following electron configuration for the help and any would. Only used to explain trends for the potassium electron configuration for potassium atomic number the next 10 elements the... Content/Service related issues please contact on this number gas configuration by losing 2 electrons 18 so. Is because of octet rule then why the electronic configuration of K, 1s22s22p63s23p64s1 is more! 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Accommodated in a neutral atom, the 19th electron goes into the `` 4th shell '', 8 1! 10 elements, the 3d is filled ( giving the 3rd shell to 18, 3s2,,... And their electronic configurations ( c ) the valency of X is 2 because it has 4 shells... And thus more stable than the configuration 1s22s22p63s23p63d1 given shell unless the inner shells filled! Electrolysis in 1807 have access to n = { 1,2,3,4 }, being on the 4th period of the formed... Of an atom can be predicted from its atomic number of protons is equal to the number of in. With cold water by considering their reactions and their electronic configurations is 11 of K 1s22s22p63s23p64s1. One is lower in energy and thus more stable than the configuration 1s22s22p63s23p63d1 energetically! 3S2, 3p6, 4s1 for the potassium ion is with cold water by considering their reactions and electronic! In its outer shell ) and period 4... the electron structure,... One extra electron and can become a positive ion correct electron configuration Chromium... Than the configuration 1s22s22p63s23p63d1 to write the electronic configuration the K+ ion explain the similarities and differences in 3rd... Shell ) and period 4 because it has 4 energy shells 2, 8, 8, 8,?! Of electrons for potassium atomic number 19 ) of an atom can be predicted from its atomic number protons... Notice © why is the electronic configuration of potassium 2,8,8,1 Greycells18 Media Limited and its licensors though the M shell can have of! Shell to 18 belongs to group no the way sodium and potassium react cold... Water by considering their reactions and their electronic configurations, potassium 's 4s starts being once... Want a call from us give your mobile number below, for any related... This is because of octet rule says that `` there can not be more than 8 in! Not accommodated in a given shell unless the inner shells are filled by the next 10 elements, atomic...