Shell structure: 2,8,18,18,7 Electron configuration: [Kr]4d105s25p5 Oxidation state: ±1,5,7 Crystal structure: orthorhombic . Iodine is a purple-black solid that sublimes at standard temperatures into purple-pink gas with an irritating odor. This element is essential in daily human consumption and is necessary in the production of the thyroid Electron Configurations are an organized means of documenting the placement of electrons based upon the energy levels and orbitals groupings of the periodic table. The electron configuration for the first 10 elements. H #1s^1# He #1s^2# Li #1s^2 2s^1# Be #1s^2 2s^2# B #1s^2 2s^2 2p^1# C #1s^2 2s^2 2p^2# N #1s^2 2s^2 2p^3# O #1s^2 2s^2 2p^4# Adult Education. Basic Education. High School Diploma. High School Equivalency. Career Technical Ed. English as 2nd Language. Write the unabbreviated electron configurations of the following elements: 1) copper 1s22s22p63s23p64s23d9 2) iodine 1s22s22p63s23p64s23d104p65s24d105p5 3) potassium The electron configuration and orbital diagram of helium are: The n = 1 shell is completely filled in a helium atom. The next atom is the alkali metal lithium with an atomic number of 3. The first two electrons in lithium fill the 1 s orbital and have the same sets of four quantum numbers as the two electrons in helium. The chemical properties of the elements reflect their electron configurations. For example, helium, neon and argon are exceptionally stable and unreactive monoatomic gases. Helium is unique since its valence shell consists of a single s-orbital. The other members of group 8 have a characteristic valence shell electron octet (ns 2 + np x 2 + np What is the shorthand electron configuration for iodide? In the case of Iodine the abbreviated electron configuration is [Kr] 4d10 5s2 5p5. Nevertheless, check the complete configuration and other interesting facts about Iodine that most people don’t know. Occurs on land and in the sea in sodium and potassium compounds. Electronic configuration of the Iodine atom in ascending order of orbital energies: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5 Electronic configuration of the Iodine atom in ascending order of the levels: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 5p 5 Reduced electronic configuration I: [Kr] 4d 10 5s 2 5p 5 pbJ7Cs8.