Naming Covalent Compounds specify name Binary Ionic compounds Polyatomic ion Naming v Polyatomic ion Naming with Roman numerals Formula composing Naming Acids


Naming Ionic Compounds using Roman number (The Stock system of Naming)

The share System

History- The type of naming you will learn about is dubbed the Stock system or Stock"s system. It was designed by Alfred share (1876-1946), a German chemist and first published in 1919. In his very own words, he thought about the system to it is in "simple, clear, immediately intelligible, capable of the most basic application."

In 1924, a German commission recommended Stock"s mechanism be embraced with some changes. For example, FeCl2,which would have actually been named iron(2)-chloride follow to Stock"s original idea, came to be iron(II) chloride in the revised proposal. In 1934, Stock authorized of the roman inn numerals, but felt it much better to keep the hyphen and drop the parenthesis. This suggestion has actually not to be followed, but the Stock device remains in use world-wide.

You are watching: Name the following compounds by using the stock system

How carry out we name compounds when the cation that variable fee is involved?

Some elements have an ext then one oxidation number and when specify name a compound these have to be identified. Romannumerals are presented after the cation in parenthesis( ) to suggest the oxidation number.

To determine what the oxidation number is, you must use the anion (negative ion) to identify what the confident oxidation number is.

Below you can see few of the facets with much more than 1 oxidation number.

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Example- Pb(NO3)4 write the name "lead nitrate". Due to the fact that lead has much more than one oxidation state we must number out which lead we have. Since each nitrate (4 the them) has actually a 1- charge, the Pb must be 4+. For this reason our roman character will it is in (IV).

Pb(NO3)4 is named "lead(IV) nitrate"

Highlight to expose names


FormulaNameFormulaName
FeCl2 iron (II) chlorideSnCl4tin (IV) chloride
CoBr3 cobalt (III) bromideFePiron (III) phosphide
MnO2 manganese (IV) oxideHg2Smercury (I) sulfide
NiBr2 nickel (II) bromidePbOlead (II) oxide
HgOmercury (II) oxideAuIgold (I) iodide
CuF2 copper (II) fluorideSnS2tin (IV) sulfide
CuIcopper (I) iodideFeBr3 iron (III) bromide
SnBr2tin (II) bromideCr2O3 chromium (III) oxide
Au3Pgold (I) phosphideCoScobalt (II) sulfide
Cr2S3chromium (III) sulfideMnI2 manganese (II) iodide
NiBrnickel (I) bromideNiSnickel (II) sulfide
FeSiron (II) sulfidePbO2lead (IV) oxide
PbCl4lead (IV) chlorideMn2O5 manganese (V) oxide


Naming Covalent Compounds specify name Binary Ionic compounds Polyatomic ion Naming through Polyatomic ion Naming through Roman number Formula writing Naming Acids