It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. What atom matches this electron configuration? Aluminum (atomic number 13), with 13 electrons and the electron configuration [Ne]3s 2 3p 1, is analogous to its family member boron, [He]2s 2 2p 1. Potassium. The electron configuration of an atom is 1s 2 2s 2 2p 6. The number of valence electrons in the atom is . Jan 05, 2021 - Electronic Configuration of Elements from Magnesium to Calcium Class 9 Notes | EduRev is made by best teachers of Class 9. Aluminum. In magnesium atom K shell contains 2 electrons and L shell contains 8 electrons and M shell contains 2 electrons which are valence electrons. Electronic configuration: 1s 2 2s 2 2p 6 3s 2 >> Back to key information about the elementBack to key information about the element Tags: Question 14 . metals and non-metals class-10 See the answer. 3. where as in magnesium ions the electronic configuration is 1s2 2s2 2p6 which attains Neon configuration. 30 seconds . SURVEY . What is the electron configuration for a magnesium ion, Mg? Therefore, you're left with 2p6 3s0 or just 2p6. Magnesium. Your first guess of B would be right if you were taking Magnesium at its ground state. Electron Configuration Chart for All Elements in the Periodic Table. The electronic configuration of magnesium atom is 1s2 2s2 2p6 3s2. Question: What Is The Electron Configuration For A Magnesium Ion, Mg? 6. There are 118 elements in the periodic table. Thank You . This document is highly rated by Class 9 students and has been viewed 2345 times. For magnesium, Z=12..... And so we simply use the aufbau scheme: 1s^(2)2s^(2)2p^(6)3s^2..... What is the electronic configuration of Mg^(2+)? The alkaline earth metal magnesium (atomic number 12), with its 12 electrons in a [Ne]3s 2 configuration, is analogous to its family member beryllium, [He]2s 2.Both atoms have a filled s subshell outside their filled inner shells. 10. Q. 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s2 1s2 2s2 2p6 1s2 2s2 2p6 3s2 3p1 None Of The Above Could You Explain Also? Each element has a unique atomic structure that is influenced by its electronic configuration, which is the distribution of electrons across different orbitals of an atom. This problem has been solved! https://www.periodic-table.org/magnesium-configuration-oxidation answer choices . Tags: Question 2 . For example, lithium forms Li +, with the 1s 2 configuration, magnesium forms Mg 2+, with the 2s 2 2p 6 configuration for its highest energy electrons, and chlorine forms Cl-, with the 3s 2 3p 6 configuration. The electron configuration of a neutral magnesium atom is: 1s2 2s2 2p6 3s2 or in shorthand [Ne] 3s2. Magnesium Electronic configuration. SURVEY . Magnesium is a chemical element with the symbol Mg and atomic number 12. Using the electronic configurations, explain how magnesium atom combines with oxygen atom to form magnesium oxide by transfer of electrons. 1s 2 2s 2 2p 6 3s 1. 8. Mg+2 is an ion that loses two electrons from its highest energy level, 3s. B would be right if you were taking magnesium at its ground state is. Has been viewed 2345 times the number of valence electrons in the Table... L shell contains 2 electrons and M shell contains 2 electrons which are valence electrons in the atom 1s! Or just 2p6 number 12 energy level, 3s magnesium ion, Mg 2s2 2p6 3s2 1s2 2p6! In the Periodic Table an ion that loses two electrons from its energy! At its ground state is the electron configuration of a neutral magnesium atom K shell contains electrons... 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