Halogens
The halogens are commonly known as "salt makers" and are the second family from the right of the periodic table, neighboring the Noble gases. Halogens have one lonely electron in there valence shell and thus have a charge of -1. Not including Astatine, all atoms in the halogen family are diatomic in there elemental form, making them unique from other atoms. Halogens have extremely high electronegativity and therefore easily attract electrons. This attribute compliments the fact that halogens only have 7 electrons in their valence shell meaning they need one more electron to have a full shell and achieve stability thus forming an ion. The halogen family is highly reactive, especially with alkali metals since the two families compliment each others needs. Alkali metals would love to give an electron away, while halogens would love to receive an electron.
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