Sodium-21 will emit positrons, each having an energy of 4.0 × 10^-13 J. What is this energy in MeV? (1 MeV = 1.602 × 10^-13 J)

Name: Sodium-21 will emit positrons, each having an energy of 4.0 × 10 -13 J. What is this energy in MeV? (1 MeV = 1.602 × 10 -13 J)
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Question

Quizplus · Accepted Answer

To convert the energy from joules to MeV, divide the energy in joules (4.0 × 10^-13 J) by the energy equivalent of 1 MeV in joules (1.602 × 10^-13 J). This gives 4.0 / 1.602 = 2.5 MeV.

Sodium-21 Will Emit Positrons, Each Having an Energy of 4