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dalvyx [7]
3 years ago
7

Properties of elements within a blank on the periodic table change in a predicatable way from one side of the table to the other

Chemistry
1 answer:
Vitek1552 [10]3 years ago
7 0

Answer: oxygen

Explanation:

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Explanation:

Potassium is a metal. Remember that metals are electropositive in nature. This implies that they give out electrons when they undergo ionic bonding with nonmetals.

Chlorine is a nonmetal. So the bond between chlorine and potassium is ionic.  Potassium gives out one electron to chlorine and the both ions now attain a stable octet.

The electronic configuration of potassium is [Ar]4s1. After giving out an electron to chlorine in an ionic bond, its electronic configuration is now [Ar].

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