Search results
Results From The WOW.Com Content Network
Polyatomic ion. An electrostatic potential map of the nitrate ion ( N O − 3 ). Areas coloured translucent red, around the outside of the red oxygen atoms themselves, signify the regions of most negative electrostatic potential. A polyatomic ion (also known as a molecular ion) is a covalent bonded set of two or more atoms, or of a metal ...
Cl 2 + ClF + AsF 5 → [Cl 3] + [AsF 6] −. In some cases the Lewis acid (the fluoride acceptor) itself acts as an oxidant: 3 I 2 + 3 SbF 5 → 2 [I 3] + [SbF 6] − + SbF 3. Usually the first method is employed for preparing heteropolyhalogen cations, and the second one is applicable to both.
Ion. Electron transfer between lithium (Li) and fluorine (F). Forming an ionic bond, Li and F become Li + and F − ions. An ion ( / ˈaɪ.ɒn, - ən /) [ 1] is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton ...
Chemical nomenclature. Chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC). IUPAC Nomenclature ensures that each compound (and its various isomers) have only ...
The four most common elements in living organisms – carbon, hydrogen, oxygen, and nitrogen – may be remembered with the acronym CHON . To remember the elements necessary for agriculture; C arbon, H ydrogen, Ca lcium, Iron ( Fe ), Magnesium ( Mg ), Manganese ( Mn ), Copper ( Cu ), Mo lybdenum, Chlorine ( Cl ), B oron.
This can be dependent on the size, charge, or structure of the ions. Common examples of ions that can bind to ion exchangers are: H + and OH − . Singly charged monatomic (i.e., monovalent) ions like Na +, K +, and Cl −. Doubly charged monatomic (i.e., divalent) ions like Ca 2+ and Mg 2+. Polyatomic inorganic ions like SO 2− 4 and PO 3− 4.
Mercury polycations are polyatomic cations that contain only mercury atoms. The best known example is the Hg2+. 2 ion, found in mercury (I) (mercurous) compounds. The existence of the metal–metal bond in Hg (I) compounds was established using X-ray studies in 1927 [ 2][page needed] and Raman spectroscopy in 1934 [ 3] making it one of the ...
Ionization (or ionisation specifically in Britain, Ireland, Australia and New Zealand) is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule is called an ion.