Which of the following pairs have nearly same mass? 1. electron and � – InterviewSolution

1.	Which of the following pairs have nearly same mass? 1. electron and β particle 2. neutron and β particle 3. proton and 21H+ ion 4. α - particle and He2+ ion 5. proton and 11H+ ion
Answer» Which of the following pairs have nearly same mass? 1. electron and $β$ particle 2. neutron and $β$ particle 3. proton and $_{1}^{2} H^{+}$ ion 4. $α$ - particle and $H e^{2 +}$ ion 5. proton and $_{1}^{1} H^{+}$ ion

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