When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Nitrate - Wikipedia

    en.wikipedia.org/wiki/Nitrate

    The nitrate ion carries a formal charge of −1. [citation needed] This charge results from a combination formal charge in which each of the three oxygens carries a − 2 ⁄ 3 charge, [citation needed] whereas the nitrogen carries a +1 charge, all these adding up to formal charge of the polyatomic nitrate ion.

  3. Nitrogen compounds - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_compounds

    The chemical element nitrogen is one of the most abundant elements in the universe and can form many compounds. It can take several oxidation states; but the most common oxidation states are -3 and +3. Nitrogen can form nitride and nitrate ions. It also forms a part of nitric acid and nitrate salts.

  4. Nitrite - Wikipedia

    en.wikipedia.org/wiki/Nitrite

    The nitrite ion has the chemical formula NO − 2. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. [1] The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having the –ONO group, which are esters of nitrous acid.

  5. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    The formula of the nitrite ion is NO − 2. Nitrogen is the least electronegative atom of the two, so it is the central atom by multiple criteria. Count valence electrons. Nitrogen has 5 valence electrons; each oxygen has 6, for a total of (6 × 2) + 5 = 17. The ion has a charge of −1, which indicates an extra electron, so the total number of ...

  6. Nitrogen - Wikipedia

    en.wikipedia.org/wiki/Nitrogen

    Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table , often called the pnictogens . It is a common element in the universe , estimated at seventh in total abundance in the Milky Way and the Solar System .

  7. List of aqueous ions by element - Wikipedia

    en.wikipedia.org/.../List_of_aqueous_ions_by_element

    Water molecules are omitted in this diagram. The model is defined in terms of a list of those complex species which are present in solutions in significant amounts. In the present context the complex species have the general formula [M p O q (OH) r] n±. where p, q and r define the stoichiometry of the species and n± gives the electrical ...

  8. Chemical formula - Wikipedia

    en.wikipedia.org/wiki/Chemical_formula

    A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.

  9. Kröger–Vink notation - Wikipedia

    en.wikipedia.org/wiki/Kröger–Vink_Notation

    The site may also be a lattice interstice, in this case, the symbol "i" is used. A cation site can be represented by the symbols C or M (for metal), and an anion site can be represented by either an A or X. C corresponds to the electronic charge of the species relative to the site that it occupies. The charge of the species is calculated by the ...