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…How many neutrons are present in atom with mass…How many electrons will be found in the nucleus of…Uranium of atom number 92 and mass number 238 emits…How many protons, neutrons and electrons…