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endo process because it involves breaking of bonds ( requires energy thus energy from surroundings are absorbed)
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoBecause you are adding a negatively charged electron to an already negatively charged ion. Hence, you get repulsion meaning lots of energy must be put in to add the electron.
Wiki User
∙ 11y agoYes, it is the energy input required to remove 1 mol of electrons from 1 mol of an atom
Wiki User
∙ 13y agoIonisation energies are always endothermic
The positive nucleus is attracted to the negative electron.
You need to put energy in to pull them apart. Like a spring.
Wiki User
∙ 10y agobecause removal of electron fron atm requires energy which is known as ionization energy
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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.
Is energy required or released in the formation of negative ions?
ergy is released in the formation of negative ion
What is positive ion and negative ion in NACl?
Na is positive ion,Cl is negative ion
What is a positive and negative ion?
when an atom loose electron it become negative ion and when it gains electron it become positive ion
Why is an enolate ion more reactive than a neutral ion?
The negative charge on oxygen of enolate ion is responsible to decrease the conjugation process so to restore conjugation enolate ion immediately reacts with any other positive ion.
Why formation of uni negative ion is an exothermic 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 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 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.
Is energy required or released in the formation of negative ions?
ergy is released in the formation of negative ion
Why electron affinity of dinegative ion is endothermic?
Di-Negative atoms are already electron rich in nature. This causes electron affinity is less. Since energy is needed to introduce another electron into the atom the process is endothermic.
Why formation of di and tri-negaive ions is endothermic process?
when an electron is added to an atom, uninegative ion is formed and enrgy is released. the addition of one more electron is difficult because negative charge or electronic cloud repels it strongly, to overcome this repelsion an amount of energy is needed, which is obtained by surroundings so its an endothermic reaction.
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
Is the formation of salt a chemical or physical change?
The formation of a salt is a chemical change. It is the result of the ionic bonding of a positive metal ion and a negative non-metal ion.
How would you compare the formation of positive ions with the formation of negative ions in terms of energy changes?
when a negative ion forms electrons are gained and energy is given off and when a positive ion forms electrons are lost and energy is used.
Describe the formation of both positive and negative ions?
A negative ion (anion) is the result of gaining electrons. A positive ion (cation) is the result of losing electrons.
What force causes the formation of ionic bonds?
a positive ion is attracted to a negative ion
