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How Many Electrons Do Halogens Have in Their Outer Shell

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How many electrons do the halogens have in their outer most energy level. How may electrons does a group 1 atom have in its outer shell. Chemistry Revision Notes Igcse Chemistry Revision Revision Notes Chemistry The halogens all have seven electrons in their outer shells. . All halogens contain seven electrons in their outermost shell. How many electrons does noble gases have in their outer shell. How many outer electrons do the halogens have. 7 Because of this feature halogens are highly reactive because they only need one electron to fill their shell. They mostly react with alkali metals such as sodium and lithium because alkali metals have one electron in their outer shell. The halogens have 7 electrons in their outer shell desparate to gain the. This means that the halogens all have similar chemical properties. Halogens are among the most reactive of all elements. How reactive is Group 16. ...