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Why does chlorine form a -1 ion?

Updated: 4/28/2022
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13y ago

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It gains an electron in its 3p orbital, giving an unbalanced negative charge.

its atomic number is 17 (2,8,7)

in the least shell need 1 electron , so it gains negative charge

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13y ago
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Q: Why does chlorine form a -1 ion?
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What kind of ion does chlorine readily form?

Negative 1


Does chlorine form a positive or a negative ion?

Negative ion. Cl-


Would chlorine fom a positive or a negative ion?

Chlorine will form a negative ion with a charge of -1 because it gains one electron to complete its octet.


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Chlorine will not for Cl-7 ion. It will form Cl-1 ion, which has total of 18 electrons.


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A chlorine ion will have a charge of -1. A chlorine atom gains one electron to form the more stable chloride ion, thereby incurring a charge of -1. There is now one more electron than proton in the chloride ion, as compared to the chlorine atom which is electrically neutral.


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They form an Ionic compound.


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A chlorine atom will attract a single electron to form a negatively charged ion with a -1 charge.


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An anion is a negatively charged ion. Chlorine, because it wants to "steal" or "borrow" an electron to achieve that "magic" inert gas electron configuration will be a negative or anion. The chlorine ion's "extra" electron will give it an overall negative charge. The anion of chlorine is written as Cl- by those who annote it in chemistry.