What does it mean when, in a chemical forumla, elements are written as sulfide/oxide instead of sulfur/oxygen?
2007-11-07 01:57:51 · 5 answers · asked by Caramel 2 in Science & Mathematics ➔ Chemistry
Sulfur is the name of the element or, sometimes, the neutral atom. Sulfide is the anion derived from sulfur, which is S 2-. Likewise, oxide is O 2-.
For example, sodium chloride (common salt) contains one Na+ ion and one Cl- (chloride) ion; formula NaCl. But sodium sulfide has to be Na2S; in "NaS" the charges wouldn't balance.
If you work out the charges on the ions in your other questions, and then write down the formulas that make the charges balance, you will be half way to solving.
2007-11-07 02:08:01 · answer #1 · answered by Facts Matter 7 · 1⤊ 0⤋
The nomenclature of naming elements with oxygen usually end up being called an "oxide". For example, Fe2O3 is iron oxide. The metal retains its full name, but its the non-metal that changes to the -ide name. just like FeS is iron sulfide.
2007-11-07 10:02:34 · answer #2 · answered by chemicalcajun 4 · 1⤊ 0⤋
sulfur is the elemental form (in the oxidation state 0)
sulfide is the ionic form, and has a -2 charge.
2007-11-07 10:02:21 · answer #3 · answered by Chemist 2 · 1⤊ 0⤋
Suphide and oxide notation means that an atom of sulphur and oxygen has gained a pair of electrons and are hence negatively charged . So they will react with a cation to form different compounds .
2007-11-07 10:21:37 · answer #4 · answered by Vikas 3 · 1⤊ 0⤋
The -ide ending is for negative ions.
sulfide is S with 2- charge
oxide is O with 2- charge
2007-11-07 10:01:33 · answer #5 · answered by Anonymous · 1⤊ 0⤋