Question

Please help!!!!!!!!!!! I don't understand this

Answer 1

6.(C) Magnesium and fluorine

7.(A) Oppositely charged ions attract

8.(C)
`3`

9.(d)
`BaI_2`

Step-by-step explanation:

6.An ionic bond is formed between a metal and a non metal.

Magnesium is a metal and fluorine is a non metal, so they form ionic bond.

7. Ionic compounds are electrically neutral as they consist of equal and opposite charges.

8. Nitrogen has
`5` electrons in outermost orbit ,
`8` is required in the outermost orbit to gain the noble gas configuration.

Thus,
`8-5=3 \ needed`

9. An ionic compound has a metal and a non metal, out of those four options only barium(Ba) is the metal combined with a non metal iodine(I)

Thus
`BaI_2` best fits.

Thus those are the respective answers.