June 2018 NY Regents Chemistry Exam
28 Which particle has the least mass?
(1) alpha particle
(2) beta particle (3) neutron
Solution: Table O on the Reference Table lists nuclear particles and their symbols. The mass number is on the top left corner of each symbol. Alpha particle has a mass of 4. Beta particle has a mass of 0. Neutron has a mass of 1 and proton has a mass of 1.
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE