Answer :
Final answer:
Calcium fluoride (CaF2) is formed via electron transfer where calcium donates 2 electrons to each fluorine atom to complete their octets, resulting in the stable compound Ca2+ and F- ions.
Explanation:
Calcium fluoride (CaF2) is formed through the reaction of calcium and fluorine. Calcium, with 2 valence electrons, transfers 2 electrons to each of the fluorine atoms, each needing 1 electron to complete its octet. This transfer results in the formation of calcium fluoride, where calcium loses electrons to fluorine, leading to the creation of Ca2+ ions and F- ions in a stable compound.
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