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| 1. |
Please give me correct answer i will mark mark you as brainliest |
| Answer» GIVEN elements belong to 3rd period. Na = SodiumAl = Aluminium CL = Chlorine It takes more energy to remove an electron from a sodium atom to form an Na+ ion than we get back when this electron is added to a chlorine atom to form a Cl- ion. Once these ions are FORMED, however, the force of attraction between these ions LIBERATES enough energy to make the FOLLOWING reaction exothermic. | |