Option c would be the correct answer
Answer:
the second option is correct
Explanation:
maybe I think b is correct
Answer:
D
Explanation:
the answer is d white precipitate
Atomic number shows the number of protons in an atom's nucleus. If the atomic number is 30, then it has 30 protons. The question says it is neutral, so it must have the same amount of protons and electrons.
A is the correct answer based on this.
Answer:
c, maybe d, and I think b.
Explanation:
Im sorry if wrong
