Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
Hello Lia. I lost my connection with the website so was not able to contact you until now. Both answers were rejected to the atomic mass question.
Hello Lia. I lost my connection with the website so was not able to contact you until now.Both answers were rejected to the atomic mass question. Please see attached screen shot. The first one the answer is between 69 and 70.
