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| 1. |
Halogens have maximum negative electron gain enthalpy. Explain why ? |
| Answer» Solution :Halogens have the smallest size in their respective PERIODS and, therefore, have high effective nuclear charge. As a result, they readily ACCEPT one electron to acquire the stable ELECTRONIC configuration of the nearest noble gas. In other words, large amount of energy is released when a halogen atom accepts and electron to form the corresponding halide ION and thus halogens have maximum negative electron GAIN enthalpies. | |