Answer: It has 52 protons
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The concentration is 5 g/L.
Concentration = mass/volume = 10 g/2 L = 5 g/L
In the given question according to the information the process of polymerization is an addition polymerization.
<h3>What is polymerization?</h3>
Polymerization is a process in which addition of many small molecules takes place for the formation of a large three dimensional substance known as polymer.
In the polymerization of polyethene the small repeating molecule is ethene and in this process product formed due to the addition process to the double bond of the ethene.
- In condensation polymerisation removal of water molecule or any other molecule takes place.
- In dehydrogenation polymerisation removal of hydrogen molecule takes place.
- In dehydrohalogenation polymerisation removal of hydrogen halide molecule takes place.
Hence given process is an addition polymerisation.
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Americium is a radioactive element .
- It goes through alpha decay during nuclear reactions .
The nuclear reaction.is given by

Here alpha can be written as He too