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Why formation of di and tri-negaive ions is endothermic process?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
Anonymous
Mahnoor Malik
Wiki User
∙ 11y agowhen an electron is added to an atom, uni-negative ion is formed and energy is released. the addition of one more electron is difficult because negative charge or electronic cloud repels it strongly, to overcome this repulsion an amount of energy is needed, which is obtained by surroundings so its an endothermic reaction.
Wiki User
∙ 14y agoFor an element to lose an electron, that electron must become excited to the point it can escape the attractive force. This requires a net energy input, making it endothermic.
Wiki User
∙ 11y agoendothermic process is that in which energy is required and to form a cation u would hav to give energy for removal of electron to overcome attraction of nucleus..
Wiki User
∙ 11y agocation is formed when an element or atom losses electron or electrons and formation of cation is endothermic process because for removal of electron energy is required........
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Is obtaining lime from limestone exothermic?
The hydratation of concentrated OH- and Na+ ions (by dilution) is exothermic, it gives an energetically prefered state of matter.(Hydratation is the extra surrounding of the ions by polar water molecules of the solvent).
Does the acide or alkaline increase rusting?
Rust formation is accelerated in the presence of acid. One of the byproducts of rust is the formation of hydroxide ions. Acid neutralises these ions allowing more to form.
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.
To dissolve an ionic solid in water, you must first disrupt the ionic bonds holding the ionic lattice together This is an endothermic process Yet many ionic solids have an exothermic heat of solutio?
More energy is released when water molecules surround the ions.
Dissolving an electrolyte in water results in the formation of?
a decrease in the vapor pressure of the liquid
What term describes the dissolving process for this solute and solvent?
The dissolving process separated the ions, atoms, and molecules of the solute with a solvent. The rate of dissolution is governed by temperature, mixing, and surface area.
Is obtaining lime from limestone exothermic?
The hydratation of concentrated OH- and Na+ ions (by dilution) is exothermic, it gives an energetically prefered state of matter.(Hydratation is the extra surrounding of the ions by polar water molecules of the solvent).
Is energy required or released in the formation of negative ions?
ergy is released in the formation of negative ion
What is dissociation of water mean?
This is the formation of the ions H+ and OH-.
What is the formation of ions when a solvent acts on a solute?
i think its ionization
Does energy always released during ionization?
During the formation of anions (negatigely charged ions) energy is released. During the formation of cations (positively charged ions) energy is absorbed.
Does the acide or alkaline increase rusting?
Rust formation is accelerated in the presence of acid. One of the byproducts of rust is the formation of hydroxide ions. Acid neutralises these ions allowing more to form.
Why formation of ADP from ATP release more energy then formation of AMP from ADP?
20 ions are broken down
What is the importance of ionzation energy in the formation of ions?
The meaning of a high ionization energy is that the formation of an ion is more difficult.
What is the heat of formation of n2O4?
The heat of formation of zinc nitrate is -2304 kJ.
What kind of solution do all the molecules of an acid break apart in water?
When an acid dissolves in water, the molecules of the acid break apart into ions. Specifically, the acid molecules donate protons (H+ ions) to the water molecules, resulting in the formation of hydronium ions (H3O+) and negatively charged ions from the acid. This process is called ionization or dissociation.
If ammonium ions are converted to nitrate and nitrite to ions through which process?
This biochemical process is named nitrification.
