Technetium-99 is widely used in medical diagnostics as a tracer molecule. It has

Question

Technetium-99 is widely used in medical diagnostics as a tracer molecule. It has a half-life of 6 hours and is easily cleared from the body. Radioactive atoms, like technetium-99, undergo decay. If the charge of the nucleus remains unchanged, which of the following types of radioactive decay could have occurred?

I. alpha decay
II. beta decay
III. gamma decay

A. I only

B. III only

C. I and II only

D. II and III only

Technetium-99 is widely used in medical diagnostics as a tracer molecule. It has a half-life of 6 hours and is easily cleared from the body. Radioactive atoms, like technetium-99, undergo decay. If the charge of the nucleus remains unchanged, which of the following types of radioactive decay could have occurred?

I. alpha decay
II. beta decay
III. gamma decay

A. I only

B. III only

C. I and II only

D. II and III only

Explanation / Answer

f charge is inchanged it means gama deacay only. Since gama particle do not have charge

Ans. III Gama decay

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