According to the number of protons, neutrons and electrons given in the table, which one of the following options is correct?
Correct answer: C. As+3, Ga+3, Ca
- A. As-3, Ga+3, Ca
- B. As+1, Ga+2, Ca
- C. As+3, Ga+3, Ca
- D. As+1, Ga, Ca+2
Explanation
Charge on any species is equal to protons-electrons:In this case:For As, 33-30=+3For Ga: 31-28=+3For Ca: 20-20-0Hence our answer is CAs it is numerical, it can have only one possible answer.
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