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What’s the mass of neutron in terms of electrons mass?(a) 1838 times of electron’s mass(b) 1/1838 times of electron’s mass(c) 1832 times of electron’s mass(d) 1/1832 times of electron’s massI had been asked this question during an online exam.I want to ask this question from Discovery of Sub-atomic Particles topic in division Structure of Atom of Chemistry – Class 11

Answer»

Correct CHOICE is (a) 1838 times of electron’s mass

Explanation: The mass of an electron is 0.00054 U. The mass of a proton is 1.00727 u. The mass of a NEUTRON is 1.00867 u. Then mass of neutron by mass of an electron is 1.00867/0.00054 = 1838. THEREFORE the mass of neutron in terms of the electron is 1838 times.



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