An atom 17 protons, 17 electrons and 18 neutrons has a mass number of? by Sunday | Aug 22 | Chemistry WAEC | 0 comments A. 17 B. 18 C. 34 D. 35 E. 52 Correct Answer: Option D – 35 Users Also Read These:A particle that contains 11 protons; 12 neutrons and…A particle that contains 9 protons, 10 neutrons and…An atom W has 17 electrons and 18 neutrons. Which of…Uranium of atom number 92 and mass number 238 emits…The nucleon number and the proton number of a…