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1 April, 06:54

Select all that apply. choose the two correct statements below. the elements of the halogen family are very reactive because: they readily lose one valence electron. they require only one electron to complete their outer shell. they have a high electronegativity. they form unstable gas molecules.

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  1. 1 April, 10:44
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    Halogens are a group of elements consisting of Fluorine, Chlorine, Bromine, Iodine and Astatine. In their ionic form, they have a superscript of - 1, for example, chloride ion is Cl-1. These means that they readily accept one electron in order to achieve the Octet rule. The Octet rule states that each atom must contain 8 electrons in their valence shell for it to be stable. The most stable set of elements are the noble gases. Because they already fulfill the Octet rule, they no longer take part in reactions. Halogens are also very electronegative, meaning, they attract more electrons toward them. This is also a consequence of the Octet rule.

    From the choices, the answers would be:

    they require only one electron to complete their outer shell

    they have a high electronegativity
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