The mass spectrometer can be used to measure mass of? by Sunday | May 9 | Chemistry WAEC | 0 comments A. an atom B. an electron C. a proton D. a neutron Correct Answer: Option A A. an atom Users Also Read These:If a gas is excited by high voltage to produce…Which of the following apparatus can be used to…The accounting ratio used to measure the average…Which of the following can be used to measure the…Which of the following types of thermometers can be…