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Mostly they are highly electronegative and they only need one electron to fill their outer shell in a noble gas octet configuration.

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Q: Why do the halogens in group 7a have such high electron in affinities?
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Why do halogens in group 7 have such have such high electron affinities?

Because they only need 1 electron to get the inert/noble gas structure and thus be extremely stable.


Which statement best describe why the halogens in group 7a have such high electron affinities?

C. They gain electrons easily because they are just... that's enough for you to get if right


What group of elements give off the most energy when they gain an electrons?

Group 8A, the noble gases because they have high electron affinity.


Why are halogens typically involved in ionic bonding?

halogens have high electron affinity, form ions easily, hence are involved in ionic bonding with suitable cations.


What group in the periodic table is referred to the halogens?

In the usual form of the periodic table in current high school textbooks, the halogens are in column 17. In older books, this column was often designated as VII.


Why do halogens have a high electron affinity?

because they need only one element to make noble gas structure.


What was the most active nonmetal?

Halides are the most active nonmetals on the periodic table because it has high electronegativity. Meaning it is more likely to attract an electron towards itself to react.


Why it is difficult to remove an electron from halogens?

In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.


Why is it difficult to remove electron from halogens?

In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.


Which group of elements has very high ionization energies and very low electron affinities?

Group 8 (noble gases) have the highest first ionization energy because they are already stable and don't want to lose any electrons. Ignoring the noble gases, however, group 7 halogens (F, Cl, Br, I, etc.) have the highest first ionization energy. That's because these elements have seven valence electrons, and they don't want to give up any electrons - they want another one!


Elements that typically attract electrons are what?

include the halogens are nonmetals


What properties do halogens have?

Halogens have many properties but the most important is the high reactivity and high electonegativity.let example of flourine it is so much high reactive that even if it react in dark still it will creat an explosion.