Radioactivity or radioactive decay is the process that occurs when unstable isotopes or atoms release energy by emitting radiations such as ,gamma radiations, alpha radiations and beta radiations to attain stability. Therefore, in this case decay is likely to occur when a given atom has two many neutrons in its nucleus in order to attain stability.
Explanation:
The kinetic energy of an object is given by :

1. Mass, m = 5 kg
Speed, v = 2 m/s

2. Mass, m = 71 kg
Speed, v = 1 m/s

3. Mass, m = 71 kg
Speed, v = 5 m/s

4. Mass, m = 1816 kg
Speed, v = 25 m/s

The correct answer is D. Meat handlers keep brain tissue from coming in contact with other meat.
Answer: There are
atoms present in 0.500 mol of
.
Explanation:
According to the mole concept, there are
atoms present in 1 mole of a substance.
In a molecule of
there is only one carbon atom present. Therefore, number of carbon atoms present in 0.500 mol of
are as follows.

Thus, we can conclude that there are
atoms present in 0.500 mol of
.