Answer:
False
Explanation:
Lead sulfate is insoluble in water and sinks in water
(sorry if it's wrong)
Calcium Flouride. It's an ionic bond. Cation + anion with the suffix -ide
fluorine, F2, chlorine, Cl2, bromine, Br2, or iodine, I2
Answer:
Valence electron pairs are the total sum of lone pairs and bond pairs in the molecule. The electrons possess negative charge on them. They repel each other due to the presence of same charge. The lone pairs repel other electrons strongly, which are present around the central atom.