Question

Halogens are the Group elements. They are highly

reactive and have
in their outer shell. They
become
when they gain an electron from a
metal. The resulting compound is a
Halogens can
also share electrons to form
compounds.

Answer 1

Group 17/VIIA

Highly reactive

7 electrons in their outer shell

They become stable and have noble gas configurations when they gain one more electron from metal

Step-by-step explanation:

halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

Due to their high effective nuclear charge, halogens are highly electronegative. Therefore, they are highly reactive and can gain an electron through reaction with other elements.

Halogens are very reactive because they have seven valence electrons and need one more to have eight valence electrons (an octet). They react with metals and other halogens to get an octet. When this happens, the atoms become stable and have noble gas configurations.