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What is needed to form a negative ion?
An electron is added in an atom to form a negative ion or anion. Because electron carry negative charge.
How does the size of a negative ion compare to the size of the atom that form?
The size of a negative ion is larger than atom. This makes more negative than positive, allowing the negative electrons to go farther from the nucleus.
What is happening to valence electrons in a purely ionic bond?
In the atom which will form the positive ion, the valence electrons is/are being given up and lost to the reaction medium (environment). In the atom which will form the negative ion, the valence electrons lingering in the reaction medium will be attracted to the proton of the negative ion and is taken in by the negative ion.
Is an ion atom with a charge?
An ion is an atom with a positive or negative charge.
What is the energy needed to remove an electron from a negative ion to form a neutral atom or molecule?
The energy needed to remove an electron from a negative ion to form a neutral atom or molecule is called the electron affinity. It represents the energy change when an electron is added to a neutral atom or molecule to form a negative ion. The higher the electron affinity, the greater the energy needed to remove an electron.
An atom is called an ion if there?
An atom is called an ion if there is a charge on it - positive or negative.
What is the difference of an atom or an ion?
A ion is an electrically charged atom, positive or negative.
What do you call an atom when it has an electric charge?
An atom with an electrical charge is called an ion.
What atom can form a negative ion but usually forms a positive one?
Non Metals
How can a negative charge become neutral?
A negative charge in an atom is neutralized bylosing electrons, so there are the same name protons as there are electronsor having a cation (a positive ion) to form with the negative ion.
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 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.
