An atom 17 protons, 17 electrons and 18 neutrons has a mass number of

celynraphael28

10 years ago

The selected answer is wrong:

mass number is the total number of protons and neutrons while atomic number is the number of protons

REF: Fundamentals of chemistry chapter 2

Myschool Paul

10 years ago

Thanks for your contributions, corrections have been made.

adex 4

10 years ago

The option marked right z wrong since mass no=proton + neutron

jos15

10 years ago

answer 35