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Câu 21:

Hạt nhân ${}_{92}^{235}U$

Câu 21: Hạt nhân 92235U{}_{92}^{235}U92235​U “bắt” một nơtron rồi vỡ thành hai mảnh nhẹ hơn và kèm theo vài nơtron. Đây là

Thông tin câu hỏi

Câu 21:

Hạt nhân ${}_{92}^{235}U$ “bắt” một nơtron rồi vỡ thành hai mảnh nhẹ hơn và kèm theo vài nơtron. Đây là