Question

Polonium has a mass number of 212 and an atomic number of 84. In a balanced nuclear reaction, polonium releases an alpha particle to produce lead. Which option is the atomic number of lead?(1 point)

210


208


80

82
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Answer 1

see below

Step-by-step explanation:

1. 138

2. the conversion of an atom of one element into a different element through nuclear changes

3. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.

4. 82

5. Some of the matter is converted to energy.

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Answer 2

D. 82

Step-by-step explanation: