1s2 2s2 2p6 3s1 electron configuration


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1s2 2s2 2p6 3s2 3p4. 1s2 2s2 2p6 3s2 3p6 3d10 4s1 4p1 Example 1: Chromium Cr's electron configuration, following the model would be: 1s2 2s2 2p6 3s2 3p6 4s23d4, but instead it is 1s2 2s2 2p6 3s2 3p6 4s13d5, because there is extra stability gained from the half-filled d orbital. 1s3 2s3 2p6 3s2 3p1 3. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d1: Y: 1s2 2s2 2p1: B: 1s2 2s2 2p6 3s2 3p5: Cl: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d6: Tc: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f9: Tb: 1s2 2s2 2p6 3s2 3p6 4s2 3d8: Ni: 1s2 2s2 2p6 3s2 3p2: Si: 1s2 2s2 2p6 3s1: Na: 1s2 2s2 2p6 3s2 3p6 4s2 3d1: Sc: 1s2 2s2: Be: 1s2 2s2 2p3: N: 1s2 2s2 2p6 Oct 27, 2009 · The element with the electron configuration 1s2 2s2 2p6 is neon. Chlorine 1s2 2s2 2p6 3s2 3p5 8. 1s2 2s2 2p6 3s2 3p6 4s1. This places it in the halogen family. C Carbon 1s2 2s2 2p2 / [He]2s2 2p2. The electron configuration for the first 10 elements. While on the other hand, the Chlorine atom which is electronegative gains one electron. Since 1s can only hold two electrons the next 2 electrons for sodium go in the 2s orbital. Removing the 3s electron leaves us with the noble gas configuration 1s2 2s2 2p6, so a sodium ion is Na+. 1s2 2s2 2p6 3s2 3p2 3d2 b. For Consider the following electron configurations to answer the questions that follow: (i) 1s2 2s2 2p6 3s1 (ii) 1s2 2s2 2p6 3s2 (iii) 1s2 2s2 2p6 3s2 3p1 (iv) 1s2 2s2 2p6 3s2 3p4 (v) 1s2 2s2 2p6 3s2 3p5 The electron configuration of the atom that is expected to have the least negative electron affinity is ________. A complete electron configuration is given as: 1s2 2s2 2p5 3s1. orbital . Test yourself on your ability to write electron configurations for the elements! A B [Ar] 4s2: Ca [Ar] 4s2 3d10: Zn 1s2 2s2 2p6 3s1: Na: 1s2 2s2 2p6 3s2 3p6 4s2 Oct 17, 2016 · ♥Thus, P (1s2 2s2 2p6 3s2 3p3) becomes [Ne] 3s2 3p3. Excited State: 1s2 2s2 2p2 3s1 Element Symbol: ? Ground State: ? Chemistry. excited state b. 5 53. 05 this is my work: (1s2)(2s2 2. Consider the following electron configurations to answer the questions that follow: (i) 1s2 2s2 2p6 3s1 (ii) 1s2 2s2 2p6 3s2 (iii) 1s2 2s2 2p6 3s2 3p1 (iv) 1s2 2s2 2p6 3s2 3p4 (v) 1s2 2s2 2p6 3s2 3p5 The electron configuration of the atom that is expected to have the least negative electron affinity is ________. o figure this out the element with the electron config of we first count the electrons. 1s2 2s2 2p4. The part up to 2p is just like the nobel gas neon. Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. Its atomic number is 20, and it is found in period 4. 1s2 2s2 2p6 3s1 3p5 c. The eleventh element in the periodic table is sodium. Example 1: Chromium Cr's electron configuration, following the model would be: 1s2 2s2 2p6 3s2 3p6 4s23d4, but instead it is 1s2 2s2 2p6 3s2 3p6 4s13d5, because there is extra stability gained from the half-filled d orbital. Element Electron Configuration H Hydrogen 1s1. The symbol for sodium is ‘Na’. What is the element 1s22s22p63s1? a sodium atom has an electron configuration of 1s22s22p63s1. If your periodic table doesn’t agree with this, your answers for elements near the f-orbitals may be slightly different. Jul 15, 2019 · All other elements in this family, Li, Na, K, Rb, and Cs, also have only one valence electron. Therefore, the first two carbon electrons will occupy 1s2 2- The second level is composed of two sublevels (s sublevel and p sublevel). However, because of either the orbital stability or the stability of having two full orbitals instead of having one full and another Answer (1 of 7): Neon. 3. 1s2 2s2 2p6 3s1 B. The complete ground state electron configuration for iodine (I) is: a. The electronic configuration for sodium is 1s2 2s2 2p6 3s1, and the electronic configuration for potassium is 1s2 2s2 2p6 3s2 3p6 4s1. Element with electron configuration 1s2 2s2 2p3 is Nitrogen (N. Oxygen has a ground-state electronic configuration of 1s2 2s2 2p4. We see from the atomic number it has 11 electrons. Which of the following electron configurations correspond to ground states (lowest energy) and which correspond to excited states? Which are impossible? Assume the configurations refer to neutral atoms. The cation formed will have a charge of +1. a) Oxygen - 1s2 2s2 2p4 b) Sodium - 1s2 2s2 2p6 3s1 c) Chlorine - 1s2 2s2 2p6 3s2 3p5 d) Aluminum - 1s2 2s2 2p6 3s2 3p1 e) Magnesium. Explanation: At a ground level, Phosphorous has an electronic configuration of 1s2 2s2 2p6 3s2 3p3 (using the spdf notation). 1s2 2s2 2p6 3s1 3p4 2. For this example, we will use the iodine atom. 1s2 2s2 2p6 3s2 3p2. 1s2 2s2 2p8. Differences: -In the Bohr model, periods and groups are used. So the number of electron must be 15 , right ? But , what if m = 1 ? Does it effect the number of electron ? CHEMISTRY . 1s2 2s2 2p6 4s1. 1s2 1p6 2s2 2p5 6. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 5p2 c. It has 2, 8, 8, 2 electrons per shell. Sulfur 1s2 2s2 2p6 3s2 3p4 17. Feb 22, 2017 · Neon 1s2 2s2 2p6 11. We assign electrons to subshells following the Aufbau principle. Tags: Question 13 . Nitrogen. May 10, 2018 · The actual electron configuration of Cr is [AR] 4s1 3d4 and Cu is [Ar] 4s1 3d10. Therefore, the sodium ion gains a charge +1, owing to the presence of 11 protons in its nucleus. For Question: 1) Match each of the following electron configurations to the correct atom. Silicon. You can write out sodium like this: Na = [Ne] 3s1 and potassium like this: K = [Kr] 4s1. Y is 1s2 2s2 2p4. V 5. b. 1s2 2s2 2p6 3s2 3p2 3d1 4. 2 electrons present in s subshell, 2 electrons each in 2px, 2py,2pz orbitals. The nex six electrons will go in the 2p orbital. c. Na 4. ) It has two electrons in 1s, two in 2s, and three in 2p (arbitrarily two in 2px and 1 in 2py. 1s2 2s2 2p6 2d6 B. H 1s1. 1s2 2s2 2p6 3s1 By: Answerout Here is the answer for the question - 1s2 2s2 2p6 3s1. 1s2 2p6 3s2 3p1 D. 1s2 2s2 2p6 3s1. Na Sodium 1s2 2s2 2p6 3s1 / [Ne] 3s1. Na (Sodium) What is the electron configuration for a nitrogen atom if the excited state? For example, sodium in its excited state would have an electron configuration of 1s2 2s2 2p6 3p1, compared with its ground state of 1s2 2s2 2p6 3s1. Consider a sample of excited atoms that lie 3. The resultant electron configuration of the chloride ion is 1s2 2s2 2p6 3s2 3p6. Tc 2) electron configuration of Ag? A) Ne: 1s2 2s2 2p6 B) N: 1s2 2s2 2p3 C) P: 1s2 2s2 2p6 3s2 3p2 4s1 D) Na: 1s2 2s2 2p6 3s1 E) He: 1s2 This problem has been solved! See the answer See the answer See the answer done loading 1. (a) 1s2 3s1 (b) 1s2 2s2 2p6 3s1 3p4 (c) 1s3 2s2 2p6 3s1 (d) 1s2 2s2 2p6 3s1 a. 14. Carbon. You'll find the correct answer below 1s2 2s2 2p6 3s1 The Correct Answer is. A. Mg Magnesium 1s2 2s2 2p6 3s2 / Jan 16, 2020 · Correct answers: 3 question: Which of the following electron configurations is not possible for an atom in an excited state? a. 1s2 2s2 2p6 3s2 3p3 Questions: Which of these have non-existent orbitals Nov 06, 2020 · Oxidation States; Electrons Per Shell: 2 8 18 5: Electron Configuration [Ar] 3d10 4s2 4p3: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3: Orbital Diagram 1s ↿⇂ 2s ↿⇂ 2p ↿⇂ ↿⇂ ↿⇂ 3s ↿⇂ 3p ↿⇂ ↿⇂ ↿⇂ 3d ↿⇂ ↿⇂ ↿⇂ ↿⇂ ↿⇂ 4s ↿⇂ 4p ↿ ↿ ↿ 4d 4f 2. a) Y can for anion because it can accept 2 electrons in its 2p orbital. Li 1s22s1. Those are the small number placed at the top after the letters. Oct 20, 2013 · Electron configuration for phosphorus is 1s2 2s2 2p6 3s2 3p3. We first determine number of electrons 2. Calcium 1s2 2s2 2p6 3s2 3p6 4s2 Dec 17, 2010 · Configuration for an element (not the abbreviated one with the noble gases)example:Ca: 1s2 2s2 2p6 3s2 3p6 4s2P: 1s2 2s2 2p6 3s2 3p3Na: 1s2 2s2 2p6 3s1 The electronic configuration 1s2,2s2, 2p6, 3s1 and 3p1 is correctly describe by (A) The excited state of Mg+ (B) The excited state of Na+ (C) The exci Aug 22, 2015 · Answer: X is 1s2 2s2 2p6 3s1. Its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2. 1s2 2s2 2p6 3s2 3p4 C. Cl 2. Sep 22, 2021 · The ground state electron configuration for an atom of sodium is A. What is 1s2 2s2 2p6? b. or. Electron Configurations are an organized means of documenting the placement of electrons based upon the energy levels and orbitals groupings of the periodic table. 1s2 2s2 2p6 3s2 2d1 3p2 5. Nov 26, 2016 · Two atoms have the electron configurations 1s2 2s2 sp6 and 1s2 2s2 2p6 3s1. So, the electron configuration for sodium is: 1s2 2s2 2p6 3s1 Do you want an easier way? The ground state electron configuration for sodium is:a. number of electrons. 1s2 2s2 2p6 3s2 3p6 3d10 4s1 4p3 d. b) X can form a cation as it can lose 1 electron from its outermost 3s orbital. On the other hand, fluorine has seven valence electrons, as shown by its configuration 1s2 2s2 2p5. Is this configuration possible? Apr 29, 2021 · Which is the correct ground state electron configuration for sodium? Examples: Na has a ground-state electronic configuration of 1s2 2s2 2p6 3s1. 18. Test review with questions from Electron Configurations: A Test On Electron Configurations Short Version And Full Version (16279) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 Test yourself on your ability to write electron configurations for the elements! A B [Ar] 4s2: Ca [Ar] 4s2 3d10: Zn 1s2 2s2 2p6 3s1: Na: 1s2 2s2 2p6 3s2 3p6 4s2 Sep 22, 2021 · The ground state electron configuration for an atom of sodium is A. I: [Kr]5s 2 4d 10 5p 5 Sep 22, 2021 · The ground state electron configuration for an atom of sodium is A. Which of the following is the electron configuration for a halogen? a) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2 b) 1s2, 2s2, 2p6, 3s1 c) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d5 How do you write an electron configuration for an ion a) Nickel 1s2, 2s2, 2p6, 3s2, 3p6, 3d8, 4s2 b) Aluminium 1s2, 2s2, 2p6, 3s1, 3p2 Aluminium is excited because the 3s subshell is not full while the 3p contains electrons. for a electron in the 3d orbital of copper. so we start listing the shells. 1s2 2s2 2p6 3s2 3p6 To construct the ground state electron configuration, 1. Mar 20, 2013 · Homework Statement Here are the following Electron Configurations of Phospohorus 1. We only have one more electron to fill and we place that in an "s" orbital 3s1. Question: Determine which electron configuration is the excited state. Sep 27, 2020 · Click here 👆 to get an answer to your question ️ What element has the following electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 … Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. Oct 04, 2019 · In the electron configuration 1s2 2s2 2p6 3s1, the 3 refers to the: answer choices . B. He 1s2. For Jan 22, 2011 · Sodium (Na), atom number 11. Question: 1) Match each of the following electron configurations to the correct atom. The 2nd noble/inert gas. A; Difficulty; easy; Reference: 10. You can tell it's an inert gas immediately, because it has a full outer shell containing a full set of full p orbitals, which always contain 6 electrons in total. Tc 2) electron configuration of Ag? A) Ne: 1s2 2s2 2p6 B) N: 1s2 2s2 2p3 C) P: 1s2 2s2 2p6 3s2 3p2 4s1 D) Na: 1s2 2s2 2p6 3s1 E) He: 1s2 This problem has been solved! See the answer See the answer See the answer done loading Aug 22, 2015 · Answer: X is 1s2 2s2 2p6 3s1. Sep 17, 2021 · The S2- ion, the simplest sulhair anion and also additionally recognized as sulfide, has an electron configuration of 1s2 2s2 2p6 3s2 3p6. The following electron configurations belong to which elements: 11) 1s2 2s2 2p6 3s1 _____ 12) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d6 _____ May 29, 2019 · Calcium has a gray or silver color to it, which may sound strange since it is in milk, and milk is white. Aug 17, 2020 · 1s2 2s2 2p6 3s1 3p4. Sodium electron configuration is 1s2 2s2 2p6 3s1. However, there is more about the science of calcium. c) Element "X" 1s2, 2s2, 2p6, 3s2, 3p5, 4s2 "X" is excited because the 3p subshell is not full while the 4s contains Dec 05, 2019 · 1s2 2s2 2p6 3s2 How do you write the electron configuration for I? The symbols used for writing the electron configuration start with the shell number (n) followed by the type of orbital and finally the superscript indicates how many electrons are in the orbital. Jan 22, 2011 · Sodium (Na), atom number 11. The p orbital can hold up to six electrons. We have the first orbital filled 1s2 now we have 9 electrons left. Oct 17, 2016 · ♥Thus, P (1s2 2s2 2p6 3s2 3p3) becomes [Ne] 3s2 3p3. ) 2. For 1s2 2s2 2p6 3s1: magnesium: 1s2 2s2 2p6 3s2: aluminum: 1s2 2s2 2p6 3s2 3p1: phosphorous: 1s2 2s2 2p6 3s2 3p3: sulfur: 1s2 2s2 2p6 3s2 3p4: potassium: 1s2 2s2 2p6 3s2 3p6 4s1: calcium: 1s2 2s2 2p6 3s2 3p6 4s2: chromium: 1s2 2s2 2p6 3s2 3p6 4s1 3d5 ! copper: 1s2 2s2 2p6 3s2 3p6 4s1 3d 10 ! bromine: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5: silver: 1s2 To figure this out the element with the electron config of we first count the electrons. Sodium 1s2 2s2 2p6 3s1 12. so we are left with 1 more electrons so the forumla is 1s2 2s2 2p6 3s1. To figure this out the element with the electron config of we first count the electrons. Now, Letter A or 1s2 2s2 2p6 3s2 3p6 4s2 3d4 is the expected electronic configuration of a chromium since it has 24 electrons. What are 2 DIFFERENT (not the same element) atomic entities that could both have this configuration? Explain using complete sentences. This electronic configuration belongs to the element sodium. Configuration for an element (not the abbreviated one with the noble gases)example:Ca: 1s2 2s2 2p6 3s2 3p6 4s2P: 1s2 2s2 2p6 3s2 3p3Na: 1s2 2s2 2p6 3s1 Mar 16, 2021 · Mg is 1s2 2s2 2p6 3s2 Mg has a valence of +2 (always) and that is because it can lose the last two electrons in the 4s orbital. The first ionization energy of one is 2080 kJ/mol and that of the other is 496 kJ/mol Match each ionization energy with one of the given electron configurations. Mar 10, 2018 · C) 1s2 2s2 2p2 Explanation: We are given that carbon has atomic number 6. Magnesium 1s2 2s2 2p6 3s2 13. sublevel. This is good because noble gas configurations are extra stable. The electron configuration for Copper (Co) is: 1s2 2s2 2p6 3s3 3p6 4s2 3d7. d. Aug 15, 2020 · To help describe the appropriate notation for electron configuration, it is best to do so through example. A neutral atom of sulfur has 16 electrons, however the atom then gains a secondary two electrons as soon as it develops an ion, taking the complete number of electrons to 18. We'll put six in the 2p orbital and then put the remaining electron in the 3s. Phosphorous 1s2 2s2 2p6 3s2 3p3 16. 1s2 2s2 2p6 3s2 3p3 Questions: Which of these have non-existent orbitals May 31, 2017 · Which electron configuration represents an atom of sodium and why? A. Mg Magnesium 1s2 2s2 2p6 3s2 / The electronic configuration for sodium is 1s2 2s2 2p6 3s1, and the electronic configuration for potassium is 1s2 2s2 2p6 3s2 3p6 4s1. 2) iron Sep 22, 2021 · The ground state electron configuration for an atom of sodium is A. Sodium electron configuration with an orbital diagram is the main topic of this article. Answer to: Which one of the following is not an allowed configuration? (a) 1s2 2s2 2p6 2d1 (b) 1s2 2s2 3s1 (c) 1s2 2s2 2p6 3s2 3p5 (d) 1s2 2s2 2p6 The complete ground state electron configuration for iodine (I) is: a. An element X with electronic configuration 2,8,2 ionises to a configuration of 2,8 when it combines with another element Y of configuration 2,8,7? Answer (1 of 7): Neon. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1 d. Once the atom becomes excited, an electron from the 3s sub-level will gain energy and jump over to the 3p sub-level, making the configuration 1s2 2s2 2p6 3s1 3p4. Following the next arrow, we fill another "s" orbital 2s2. What is the number of valence electrons in a. Determine which electron configuration is the excited state. Now you have made the electron configuration for Sodium, easy right. The following electron configurations belong to which elements: 11) 1s2 2s2 2p6 3s1 _____ 12) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d6 _____ 1s2 2s2 2p6 3s1 By: Answerout Here is the answer for the question - 1s2 2s2 2p6 3s1. Nov 27, 2016 · 1- this question is wrong because it's breaking the ruleof Aufbau principal 2-If he miss-typed his superscript 3s2 instead of 3s1 and 4s2 instead of 4s1 then 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s2 1s2 2s2 2p6 1s2 2s2 2p6 3s2 3p1 none of the above Could you explain also? Thank you Question : What is the electron configuration for a magnesium ion, Mg? To figure this out the element with the electron config of we first count the electrons. 1s2 2s2 2p7 3s1 3p3 D. C 3. 1- The first level is composed of only one sublevel (s sublevel) and can hold only two electrons. -The electrons are put in each orbital. 1s1 2s2 2p6 3s2 C. Notice that both have just one electron after the noble gas in an s-orbital. 211 × 10–19 J above the ground state. Silicon 1s2 2s2 2p6 3s2 3p2 15. Following the third arrow down we add 6 electrons to a "p" orbital (2p6). There are two ways in which electron configuration can be written: I: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5. energy level . Dec 07, 2010 · Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and 4p4 valence electrons and the rest core chemistry How do i calculate the effective nuclear charge of a 3d electron of copper? what is the zeff. 1s2 2s2 2p5. For Na, the electronic structure would be 2,8,1. O Oxygen 1s2 2s2 2p4 / [He] 2s2 2p4. Therefore the sodium electron configuration will be 1s 2 2s 2 2p 6 3s 1. We fill the next orbitals 2s2 and 2p6. This means that carbon has 6 electrons. Test review with questions from Electron Configurations: A Test On Electron Configurations Short Version And Full Version (16279) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 Sep 28, 2021 · The resultant, electronic configuration of the Sodium ion is 1s2 2s2 2p6. 1) sodium 1s2 2s2 2p6 3s1. This determine the amount of valence electrons and the electron shells. Aluminum 1s2 2s2 2p6 3s2 3p1 7. Configuration for an element (not the abbreviated one with the noble gases)example:Ca: 1s2 2s2 2p6 3s2 3p6 4s2P: 1s2 2s2 2p6 3s2 3p3Na: 1s2 2s2 2p6 3s1 Nov 27, 2016 · 1- this question is wrong because it's breaking the ruleof Aufbau principal 2-If he miss-typed his superscript 3s2 instead of 3s1 and 4s2 instead of 4s1 then 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s2 1s2 2s2 2p6 1s2 2s2 2p6 3s2 3p1 none of the above Could you explain also? Thank you Question : What is the electron configuration for a magnesium ion, Mg? Feb 25, 2021 - 1s2 2s2 2p6 3s1 ||What is 1s2 2s2 2p6 3s1 ?||What element has the electron configuration of 1s2 2s2 2p6 3s1 ? To understand the electron configuration, look at it like this; The sum of the electrons in 1s2 2s2 2p6 3s1 = 2 + 2 + 6 + 1 and this is the electron configuration of sodium. So, the electron configuration for sodium is: 1s2 2s2 2p6 3s1 Do you want an easier way? Chemistry questions and answers. 1s2 2s2 2p2 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s2 3p5 1s2 2s2 2p6 3s2 3p6 4s2 3d3 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5 1. The anion formed will have charge -2. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 e. 1s2 2s2 2p6 3s1: magnesium: 1s2 2s2 2p6 3s2: aluminum: 1s2 2s2 2p6 3s2 3p1: phosphorous: 1s2 2s2 2p6 3s2 3p3: sulfur: 1s2 2s2 2p6 3s2 3p4: potassium: 1s2 2s2 2p6 3s2 3p6 4s1: calcium: 1s2 2s2 2p6 3s2 3p6 4s2: chromium: 1s2 2s2 2p6 3s2 3p6 4s1 3d5 ! copper: 1s2 2s2 2p6 3s2 3p6 4s1 3d 10 ! bromine: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5: silver: 1s2 Match the electron configuration to the appropriate element. Sep 28, 2021 · The resultant, electronic configuration of the Sodium ion is 1s2 2s2 2p6. The electron configuration of sodium is 1s2 2s2 2p6 3s1. N Nitrogen 1s2 2s2 2p3 / [He] 2s2 2p3. i looked up the answer to be 13. Potassium 1s2 2s2 2p6 3s2 3p6 4s1 20. 1s2 2s2 2p6 3s2 3p6 4s2 3d7 b. In first shell 2 electrons are present, that too in s sub shell. Argon 1s2 2s2 2p6 3s2 3p6 19. A complete electron configuration is given as: 1s2 2s2 2p6 3s2 3p6. 1s2 2s2 2p6 This represents 2 electrons in the s subshell of the first energy level , 2 electrons in the s subshell of the second energy level and 6 electrons in the p subshell of the Mar 2, 2021 - Which element has the electron configuration of 1s2 2s2 2p6 3s2 3p6 3d10 4s1 ?#1s22s22p63s23p63d104s1 Oct 15, 2014 · Electron configuration: 1s2 2s2 2p6 3s1 2. . The electron configuration of sodium shows that the period of sodium is 3 and sodium is a s-block element. 20, but i calculated 13. Group of. Since 1s can only hold two electrons the next 2 electrons for o go in the 2s orbital. Na (Sodium) Sodium electron configuration is 1s2 2s2 2p6 3s1. For t Mar 16, 2021 · Mg is 1s2 2s2 2p6 3s2 Mg has a valence of +2 (always) and that is because it can lose the last two electrons in the 4s orbital. Electron Configurations of Elements.