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aznmistyblue aznmistyblue
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2 weeks ago

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)



4.0 × 10–7 MeV



▸ 2.5 MeV

▸ 40 MeV

2.5 × 106 MeV



2.5 × 10–6 MeV

Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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tswinson3tswinson3
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