Two pure elements react to form a compound. One element is an alkali metal, X, and the other element is a halogen, Z. Which of t
he following is the most valid scientific claim that can be made about the compound?a. It has the formula XZ2 b. It does not dissolve in water.
c. It contains ionic bonds.
d. It contains covalent bonds.
Explanation: Ionic bonds are formed as a result of electrostatic force of attraction between a positively charged ion (cation) and a negatively charged ion (anion).
An alkali metal is a member of the group one elements such as lithium, sodium and potassium which have one electron in their outermost shell while a halogen is a member of group seven elements such as fluorine, chlorine and bromine which have seven electrons in their outermost shell. X will lose its valence electron in order to attain a stable octet or duplet structure thus becoming positively charged while X will gain the electron lost by X in order to attain a stable octet structure thus becoming negatively charged.
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