The Bohr model of the atom proposed the existence of by Sunday | Mar 19 | Chemistry WAEC | 0 comments A. the nucleus B. electron shells C. nucleons D. neutrons Correct Answer: Option B – electron shells Users Also Read These:The nucleon number and the proton number of a…The nucleon number and the proton number of a…In the upper atmosphere, the ultra-violet light…An atom W has 17 electrons and 18 neutrons. Which of…The diagram below is an illustration of one of the…