why does potassium with atomic number as 19 have its electronic configuration as 2 8 8 1 why it doesnot not have an electronic configuration of 2 8 9 - Chemistry - TopperLearning.com | itdvyytt (a) X belongs to period 4 because it has 4 energy shells. Potassium is an alkali metal. It does have access to n = {1,2,3,4}, being on the 4th period of the periodic table. Electronic configuration of 'X' is 2, 8, 8, 2. Hence, the electronic configuration of potassium is 2,8,8,1 and not 2,8,9. [Ar] 4s1 or 2, 8, 8, 1. The correct electron configuration for the potassium ion is. For example, the atomic number of sodium is 11. Octet rule says that " there can not be more than 8 electrons in outermost(valence) shell". In its simplest form, we could write the electronic configuration of potassium as 2,8,8,1 In terms of subshells, the electronic configuration would be represented as 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. __ i know that it is energetically more stable for the electron to . Sodium atoms have 11 protons and so 11 electrons: The electronic configuration of potassium is 2,8,8,1 and calcium 2,8,8,2 when M shell can have maximum - Brainly.in. 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. … For example, a potassium atom has the electron structure 2, 8, 8, 1. 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. Potassium (chem) Confirm that the experimentally observed electronic configuration of K, 1s22s22p63s23p64s1 is energetically more stable than the configuration 1s22s22p63s23p63d1. In order to write the Potassium electron configuration, we first need to know the number of electrons for the K atom (there are 19 electrons). 2 Answers MAT Nov 16, 2015 ... Kazi Ashiq Iqbal Nov 16, 2015 2,8,8,1. Afraid of a subject or a topic? Consequently, the electron configuration of potassium, which begins the fourth period, is [Ar]4s 1, and the configuration of calcium is [Ar]4s 2. The electronic configuration of an atom can be predicted from its atomic number. Why is the simple electron configuration of potassium 2, 8, 8, 1? In a neutral atom, the number of protons is equal to the number of electrons. Thus, in your words, the 19th electron goes into the "4th shell". 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. (c) The valency of X is 2 because it can acquire stable gas configuration by losing 2 electrons. Ltd. All rights reserved. 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)? 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. 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. In a neutral atom, the number of protons is equal to the number of electrons. 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. Kindly Sign up for a personalized experience. Chemistry Electron Configuration Electron Configuration. Ask a Question + Ask Question + Ask Question 2. Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? Thanks for the help and any websites would be … What is the electron configuration of potassium? Electrons are not accommodated in a given shell unless the inner shells are filled. (a) write nature of the bond formed between X and Y. Don’t worry, let us know and we will help you master it. Explain why, in terms of their electronic configurations, potassium is more reactive than sodium. 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 - Once the 2,8,8 part is full, any extra electrons spill over into the “18” shell. Hence, the electronic configuration of … follow the link. element Scandium has electronic configuration 2,8,9,2 and not 2,8,8,3 . Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Hence, the electronic configuration of potassium is 2,8,8,1 and not 2,8,9. sir/madam, why is the electronic configuration of potassium is 2,8,8,1 and not 2,8,9? 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. Thus, electronic configuration of elements follows an ascending order. According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). You should have written 2,8,8,1. Potassium with atomic number 19 has the electronic configuration (2, 8, 8, 1). the electronic configuration of potassium is 2,8,8,1 instead of 2,8,9 though the M shell can accomodate upto 18 electrons . The superscripts show the number of electrons. 1. Thus, in your words, the 19th electron goes into the "4th shell". RadiantThanks is waiting for your help. The correct electron configuration for the potassium atom is. Also check how to write the electronic configuration of first 30 elements. What is the electron configuration of potassium? Chemistry Electron Configuration Electron Configuration. document.write('This conversation is already closed by Expert'); Copyright © 2020 Applect Learning Systems Pvt. Five 3d orbitals are filled by the next 10 elements, the transition metals, followed by three 4p orbitals. 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. Electrons are not accommodated in a given shell unless the … The total number of electrons present in Helium = 2. 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. Hence, the electronic configuration of potassium is 2,8,8,1 and not 2,8,9. Which element's 4+ ion would have the following electron configuration? The electronic configuration of potassium is 2,8,8,1 and calcium 2,8,8,2 when M shell can have maximum - Brainly.in. Speak now. Therefore the Potassium electron configuration will be 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. explain The shells are filled with electrons in a particular order with K shell filled first followed by L and then M. Because there is only one electron, the element is very reactive and searches out other elements to …. 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. 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 The 'proper' electron configuration of K is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. Why is the electronic configuration of potassium 2,8,8,1 and not 2,8,9, ? 19. Beside above, what is the electron configuration for potassium atomic number 19 )? 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? Best and easy explanation for Grade 7,8,9 & 10. potassium 2.8.8.1 When sodium and potassium react with water they form positive ions. So, it can lose one extra electron and can become a positive ion. Contact us on below numbers. Explain the similarities and differences in the way sodium and potassium react with cold water by considering their reactions and their electronic configurations. Its electronic configuration is 2, 8, 8, 1 or we can say 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1. Copyright Notice © 2020 Greycells18 Media Limited and its licensors. (b) Since X has 2 valence electrons, so it belongs to group no. Chemistry. 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. The electronic configuration of potassium is 2.8.8.1. Answer. But the 2.8.8.1 one is lower in energy and thus more stable. 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. 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. $\begingroup$ 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. For example, a potassium atom has the electron structure 2, 8, 8, 1. It is in group 1 (1 electron in its outer shell) and period 4 ... the electron configuration or the electronic configuration. After the 4s is filled, the 3d is filled, bringing the number of electrons in the 3rd shell to 18. According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). 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 Note that this type of eletron configuration is the most basic one and only used to explain trends for the lower elements. Add your answer and earn points. The electronic configuration of sodium is 2.8.1. Calculate the average atomic mass of this element. You should have written 2,8,8,1. Like all Group 1 (alkali metal) elements, potassium will readily lose an electron … 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. 2, 8, 8, 1. Beside above, what is the electron configuration for potassium atomic number 19 )? I thought in the 3rd level the max is 18, so why can't you just write it 2, 8, 9? So, it is a metal. According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). Explain the similarities and differences in the way sodium and potassium react with cold water by considering their reactions and their electronic configurations. 2,8,8,1 is the simplified electron configuration for the potassium atom. It does have access to n = {1,2,3,4}, being on the 4th period of the periodic table. Thus, potassium's 4s starts being filled once its 3p is filled (giving the 3rd shell 8 electrons). 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 - The number of electrons in each shell in atomic structure is N e =2n 2 So, the 3rd shell can have a maximum number of electrons of 18. See a picture of a potassium atom. 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. EC - Electronic Configuration. All rights reserved. 1s2, 2s2, 2p6, 3s2, 3p6, 4s1. The electronic configurations of the elements in group 1: The atoms of all group 1 elements have similar chemical properties and reactions because they all have one electron in their outer shell. HISTORY Potassium was first isolated from caustic potash KOH (molten) by electrolysis in 1807. Understand the meaning of displacement and double displacement reactions. The electronic configuration of potassium is 2.8.8.1. A Set With Two Elements. 2,8,8 is the electron configuration for the K+ ion. Want a call from us give your mobile number below, For any content/service related issues please contact on this number.
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