The charge on an atom is related to its valence electrons or oxidation state. The iodine atoms are added as anions, and each has a 1− charge and a mass number of 127. In a neutral atom there are as many electrons as protons moving about nucleus. The ground state electronic configuration of neutral iodine is [Kr].4d 10.5s 2.5p 5 and the term symbol of iodine is 2 P 3/2. An atom of an element is most stable when its outer electron shell is completely filled or half-filled. Solution The atomic number of iodine (53) tells us that a neutral iodine atom contains 53 protons in its nucleus and 53 electrons outside its nucleus. Write and interpret symbols that depict the atomic number, mass number, and charge of an atom or ion ; Define the atomic mass unit and average atomic mass; Calculate average atomic mass and isotopic abundance; The development of modern atomic theory revealed much about the inner structure of atoms. Write and interpret symbols that depict the atomic number, mass number, and charge of an atom or ion ; Define the atomic mass unit and average atomic mass; Calculate average atomic mass and isotopic abundance; The development of modern atomic theory revealed much about the inner structure of atoms. It gains electrons in order to attain the configuration of a noble gas, which means it gains 3 electrons. ), It can possess many charges. The chemical symbol for Iodine is ... Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The most common charges are based on maximum stability for the atom. It was learned that an atom contains a very small nucleus composed of positively charged … For example, hydrogen sometimes has a charge of zero or (less commonly) -1. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. It volatilises at ambient temperatures into a pretty blue-violet gas with an irritating odour. Iodine: description Your user agent does not support the HTML5 Audio element. Determine the numbers of protons, neutrons, and electrons in one of these iodine anions. The atomic number of iodine (53) tells us that a neutral iodine atom contains 53 protons in its nucleus and 53 electrons outside its nucleus. The iodine atoms are added as anions, and each has a 1− charge and a mass number of 127. Solution . There is no single charge on iodine (if you are referring to its oxidizing number). Determine the numbers of protons, neutrons, and electrons in one of these iodine anions. Iodine is a bluish-black, lustrous solid. Since it can have more than 8 electrons for its outermost shell (really crazy stuff about atomic orbitals! However, other charges are possible. Nitride is an Anion of nitrogen.