For any given element the mass number can be found by adding the protons and the neutrons.
In this case its 10 protons plus 11 neutrons which gives us 21 as the mass number.
Answer:
Explanation:
1) person 2 had a slightly higher blood glucose level than person 1 after fasting 12 hrs (0.2mmols)
2) person 3 has a much higher blood glucose level than person 1 after taking glucose (5.6mmols)
3) insulin