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Because when the negative ion is form the atom evolves energy for gaining an other electron.The energy evolves in anionic process so the formation of negative ion is an exothermic process.
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Why formation of uni-negative ion is exothermiic process?
Because when the negative ion is form the atom evolves energy for gaining an other electron.The energy evolves in anionic process so the formation of negative ion is an exothermic process.
Why anion formation is exothermic?
During the Formation of postitve ion we have to break the force attraction between nuecleus and electron. while doing so energy is absorbed and process become endothermic.
Why is the hydration of an ion always negative?
The hydration of an ion is negative because energy is released when water molecules surround and stabilize the ion. This release of energy is favorable and results in a negative enthalpy change. The hydration process is exothermic, meaning it releases heat.
Is energy required or released in the formation of negative ions?
ergy is released in the formation of negative ion
What does a halogen atom give off when it gains an electron?
When a halogen atom gains an electron, it forms a halide ion and releases energy in the form of heat or light. This process is exothermic and results in the formation of a stable, negatively charged halide ion.
Why is it when some compounds dissolve the process is exothermic?
When some compounds dissolve, the process is exothermic because the energy released during the formation of interactions between solute and solvent molecules exceeds the energy required to break the solute's bonds. This release of energy often occurs when strong attractions, such as hydrogen bonds or ion-dipole interactions, are formed. As a result, the overall energy change is negative, indicating that heat is released into the surroundings, leading to an increase in temperature. Thus, the exothermic nature of dissolution is linked to the balance of energy changes during the process.
What is the difference between the formation of a positive ion and a negative ion?
positive ion forms when any electron removes from an atom and an anion called negative ion forms when an atom accepts an additional electron
Why is electron affinity expressed as a positive number in calculating energy of ion pair formation?
Electron affinity is expressed as a positive number in the context of calculating the energy of ion pair formation because it represents the energy released when an electron is added to a neutral atom, resulting in the formation of a negatively charged ion. This process is exothermic, meaning it releases energy, which is why the value is positive in calculations. By convention, positive values indicate energy release, facilitating the understanding of energy changes during ion formation. Thus, when considering the overall energy balance in ion pair formation, the electron affinity contributes positively to the total energy released.
What happens when a positive ion of the base combines with the negative ion?
When a positive ion of a base combines with a negative ion, they form an ionic compound called a salt. This reaction is known as neutralization and results in the formation of water molecules. The salt produced depends on the specific base and negative ion involved in the reaction.
Is an element with a large negative electron affinity most likely to form a positive ion a negative ion or a neutral atom?
An element with a large negative electron affinity is more likely to form a negative ion because it strongly attracts electrons to achieve a stable electron configuration. This results in the formation of negatively charged ions.
Why formation of anion is exothermic?
During the Formation of postitve ion we have to break the force attraction between nuecleus and electron. while doing so energy is absorbed and process become endothermic.
What represents a neutral atom acquiring an electron in an exothermic process?
When a neutral atom acquires an electron in an exothermic process, it forms a negatively charged ion. This occurs when the energy released during the process is greater than the energy required to add the electron. The result is a more stable ion with a full outer electron shell.
