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Halogens have 7 valence electrons, in order to become a noble gas you need 8 so instead of losing electrons, it would be easier just to gain 1.

That would make Halogens a negative 1

If you do the dot structure you can see that there is only room to gain 1 electron when forming a bond.

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14y ago

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Related Questions

How many electrons do the halogens gain?

They gain one.


How many electrons do the halogens have in their outer most energy level?

The halogens have 7 electrons in their outer shell desparate to gain the 1 electron to make a full shell of 8 electrons.


How many electrons do halogens have to lose or gain to achieve a stable noble gas electron configuration?

They have to gain 1 electron. Halogens have 7 electrons in their valence shell and noble gasses have 8.


What groups of atoms give off the most energy when they gain electrons?

Group 17, halogens


How many valence electrons halogens?

Halogens have 7 valence electrons.


Why are the halogens so reactive and noble gases not reactive?

Because noble gases don't need to give or take any electrons - they have a perfect octet configuration. Where as halogens need to gain or lose electrons and will easily react to other halogens that need to lose or gain.


How many electrons in halogens outer shell?

There are 7 electrons! Hehe


Elements that typically attract electrons are what?

include the halogens are nonmetals


Do halogens combine easily with metals?

Yes, halogens combine easily with metals to form ionic compounds. Metals tend to lose electrons and become cations, while halogens gain electrons to become anions. This transfer of electrons results in the formation of stable ionic bonds, making halogens highly reactive with metals. For example, sodium chloride (table salt) is formed when sodium (a metal) reacts with chlorine (a halogen).


What is Oxidation number of halogens?

Halogens typically have an oxidation number of -1 in compounds because they have seven valence electrons and need to gain only one electron to achieve a full octet. Exception: in compounds with oxygen or other halogens, halogens may have positive oxidation numbers.


What group achieves the electron configuration of a noble gas by gaining one electron?

All halogens have 7 valence electrons. They gain one electron and achieve noble gas electronic configuration


How many valence electrons do Halogens have in p subshell orbitals?

Halogens have 5 electrons in their outermost p shell in their electrically balanced state. The p shell has 3 orbitals in each energy level. Halogens have 2 filled orbitals each with 2 electrons in them and one orbital with only one electron in it. In order to obtain the stable noble gas electron configuration, halogens gain one electron to completely fill the p shell on the outermost energy level. This gives halogens a charge of -1.