Take the L an Ricky rolled
50,290,000 KM
50,290,000*1000= 5290000000 meters
I and III because when wearer boil the kinetic energy atoms move faster and the particles break apart which means the space increases instead of decreasing
Answer:
Leon
Explanation: all take up space and will have a mass to it.
Answer: The nuclide symbol of X is 
Explanation:
The given nuclear reaction is a type of alpha decay process. In this process, the nucleus decays by releasing an alpha particle. The mass number of the nucleus is reduced by 4 units and atomic number is also decreased by 2 units. The particle released is a helium nucleus.
The general equation representing alpha decay process is:

For the given equation :

As the atomic number and mass number must be equal on both sides of the nuclear equation:

Thus the nuclide symbol of X is 