Tính độ Phóng Xạ Của 1 Gam Rađi Ra Có Chu Kì Bán Rã T = 1622 Năm ...

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• Tính độ phóng xạ của 1 gam Rađi Ra có chu kì bán rã T = 1622 năm.

Câu 1:

Tính độ phóng xạ của 1 gam Rađi Ra có chu kì bán rã T = 1622 năm. Cho NA = 6,023.1023 nguyên tử/mol:

A.

220,5 Ci.

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220,5 Ci.

Ta có: H0 = λN0 = . 6,023.1023

= 8,16.1012 (Bq) = 220,5 (Ci).

B.

100Ci.

C.

217Ci.

D.

50Ci.

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Vật Lý lớp 12 - Đề kiểm tra trắc nghiệm 20 phút Chương 7 Hạt nhân nguyên tử - Đề số 5

• 20 phút
• 10 câu hỏi

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