Answer:
a) is correct.......,.....
The mass number of this particular element is 37
An element with 17 protons will ALWAYS be chlorine.
The mass number is found by adding the element’s protons and neutrons.
protons+neutrons=mass number
Here is the math if needed,
17+20=37
Therefore the mass number is 37
I hope this helped!
Answer: 0.08695652
Explanation:
You would do the answer you got subtracting from the expected answer over your expected answer
