An important observation of Faraday was the ability of some “medium species” to travel across the aqueous solution from one electrode to another. It was only known as the species traveling from one electrode to another electrode both electrodes being present in an aqueous medium. ![]() At that time, the ionic concept and the nature of the chemical species as it is known today weren’t clear. The term ion was coined in 1834 by English physicist cum chemist Michael Faraday. Let’s discuss a brief historical aspect of ions, the coining of various terms, and scientific discoveries. These are examples of some ionic compounds. Figure 3: Ionic compounds are formed when anions and cations come together and establish an ionic bond. What is an ionic compound? Since opposite charges attract each other, anions and cations being negatively and positively charged respectively, readily come together to form ionic compounds. Now you can tell what is a monatomic ion and what are polyatomic ions… Image Credit: Expii. Consisting of two or more atoms: POLYATOMIC ION / MOLECULAR IONįigure 2: Difference between monoatomic and polyatomic ion formula and monoatomic and polyatomic ions examples.Consisting of a single atom: MONOATOMIC ION (an ion made of a single atom).Image Credit: The Bumbling Biochemist.īased on the number of atoms involved, ions are of two types: Negatively charged ions and negatively charged particles are called anions (negative ions).įigure 1: A representation of ion concept and difference between anion and cation. Negatively charged atoms & Fewer protons Sodium ions and calcium ions are examples of cations. ![]() Positively charged ions and positively charged particles are called cations.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |