Which of the following is a radioactive element ?

1.
Which of the following is a radioactive element ?

A. Sulphur

B. Polonium

C. Tellurium

D. Selenium

Answer» C. Tellurium

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1.	Which of the following is a radioactive element ?
A.	Sulphur
B.	Polonium
C.	Tellurium
D.	Selenium
Answer» C. Tellurium

Which of the following is a radioactive element ?

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