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प्रश्न
In 88 Ra226 nucleus, there are
पर्याय
138 proton and 88 neutron
138 neutrons and 88 proton
226 proton and 88 electron
226 neutron and 138 electron
MCQ
उत्तर
138 neutrons and 88 proton
Explanation:
No - of proton Z = 88
No of neutron = A – Z = 226 – 88 = 138.
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