You can access this free training by: 1  Go to https://pcau.enspark.com. 2  Complete Registration. Parents must select I am a Parent of a Student. 3  Click the Registration Button. 4  Click Launch Course. 5  Complete the one-hour training. 6  There will be a Certificate of Completion issued at the end of the course.
# of neutrons = Mass Number - Number of Protons. To be able to apply this formula, refer to the atomic number and atomic weight of the elements. These two are listed in the Periodic Table of Elements. Take note that atomic number refers to the number of protons in an atom of an element.
Â· just now. Report Abuse. atomic number represents the no.of protons in the nucleus. it is equal to no. of electrons as atom as a whole is neutral. mass number of an atom equals to no.of neutrons +no.of protons in the nucleus of an atom. Mass no minus atomic no equals to no of protons.