InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
@DishaI am also kring timepass!!! |
|
Answer» Answer: Hint: Chemical formula is an expression that is used to denote the number and types of elements that are present in one molecule of a compound. The chemical formula of sodium oxide contains two sodium atoms and one OXYGEN atom. Complete step-by-step answer: Sodium oxide is an ionic compound made up of sodium IONS and oxide ions. As we know that the electronic configuration of Na is 2,8,1. Since only one electron is present in the OUTERMOST shell or VALENCE shell. Hence, its valency is +1. The electronic configuration of oxygen is 2,6. Since six electrons are present in the outermost shell, so to calculate the valency for atoms 4 or more than FOUR we have to subtract it from 8. So, the valency of oxygen should be (8−6) = 2. Explanation: |
|