Three atoms, because theirs two Na and one S .
The oxidation number of Na in Na2S is +1. The oxidation number of S is -2. The sum of the oxidation numbers of all atoms in a compound must equal zero.
In one molecule of Na2S (sodium sulfide), there are 2 atoms of sodium (Na) and 1 atom of sulfur (S).
Sodium sulfide is the compound formed by the combination of sodium and sulfur atoms. It has the chemical formula Na2S.
Na2S does not contain carbon or hydrogen. Na2S is formed by sodium ions and sulfide ions. So Na2S is not a organic compound.
Sodium sulfide
The oxidation number of Na in Na2S is +1. The oxidation number of S is -2. The sum of the oxidation numbers of all atoms in a compound must equal zero.
In one molecule of Na2S (sodium sulfide), there are 2 atoms of sodium (Na) and 1 atom of sulfur (S).
Sodium sulphide has one sodium atom and two sulphur atoms. NA2S
Sodium sulfide is the compound formed by the combination of sodium and sulfur atoms. It has the chemical formula Na2S.
Na2S does not contain carbon or hydrogen. Na2S is formed by sodium ions and sulfide ions. So Na2S is not a organic compound.
Sodium sulfide
The balanced equation is 2HCl + Na2S → H2S + 2NaCl. This is balanced as the number of atoms of each element is the same on both sides of the equation.
That no matter is lost during the reaction. That is why the number of atoms of a specific element on one side of the reaction is equal to the number of atoms on the other side. Na2S + 2HBr -------> 2NaBr + H2S #of atoms................ #of atoms 2Na..............................2Na 1S................................1S 2H............................... 2H 2Br.............................. 2Br
In one formula unit of sodium sulfide (Na2S), there are 3 atoms - 2 atoms of sodium (Na) and 1 atom of sulfur (S).
Na2S
In Na2S, ionic bonds are formed between sodium (Na) and sulfur (S) atoms. Sodium atoms donate electrons to sulfur atoms, resulting in the formation of positively charged sodium ions (Na+) and negatively charged sulfide ions (S2-). These ions are then attracted to each other, forming an ionic bond.
The hydrate of Na2S is Na2S.9H2O. Its name is sodium sulfide nonahydrate.