Answer: -
When bismuth-212 undergoes alpha decay, it becomes ²⁰⁸Tl
Explanation: -
Mass number of ²¹²Bi = 212
Atomic number of ²¹²Bi = 83
When alpha decay occurs the mass number decreases by 4 and the atomic number decreases by 2.
Mass number of daughter = 212 - 4 = 208
Atomic number of daughter = 83 - 2 = 81
It is the atomic number of Thallium Tl.
Thus the daughter nucleide is ²⁰⁸Tl.
The correct answer is:
3) Earthquakes can be caused by volcanic eruptions.
You were right :)
<span>1.0 x 10-14. That is the value of Kw at 25 degrees C.
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Sorry the answer might be a little late but it would be <span>Simple squamous</span>
