Write the electron-dot structures of (i) sodium, and (ii) oxygen. Using these structures, show the formation…
Write the electron-dot structures of (i) sodium, and (ii) oxygen. Using these structures, show the formation of sodium oxide. Mark the anion and cation present in this compound.
(At. No. – Sodium = 11 and Oxygen = 8)
Solution
Na O
2, 8, 1 2, 6
(i) [electron dot diagram: Na with one dot]
(ii) [electron dot diagram: O with three lone pairs and one dot]
• Formation of sodium oxide Na2O
[diagram: two Na atoms each transferring one electron to O, forming (Na+)2 [O]2- ionic structure]
Anion: O2-
Cation: Na+