Q34 of 149 Page 211

What are radioactive isotopes? Give two examples of radioactive isotopes

Due to presence of extra neutrons in their nuclei some isotopes are unstable and emit various types of radiations. These isotopes are called radioactive isotopes.

The two examples of the radioactive isotopes are:


Carbon-14, and Arsenic-74.


More from this chapter

All 149 →
33

Give one similarity and one difference between a pair of isotopes

 33

Give the number of protons, neutrons and electrons per atom in the two isotopes of chlorine and .

 34

Give any two uses of radioactive isotopes.

 34

An element Z contains two naturally occurring isotopes . If the average atomic mass of this element be 35.5 u, calculate the percentage of two isotopes.