Answer:
hi I'm sorry I can't I just need points
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!
you calculate all the letters together and it would be Zn2
amino group
carboxyl group
R-group
single Hydrogen arom
