I dont know you properly find your answer on google its so easy to get it from there good luck
Answer:
Proteins
Explanation:
Amino acids act as monomers (a single unit used to form polymers) , the polymer will be a long chain of individual amino acids. An amino acid chain forms a protein. These proteins are also known as peptides.
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Answer:
I <em><u>THINK mechanical energy</u></em>
The nuclear reaction occurring is known as alpha-decay, and during this process, an alpha particle is released from a heavy radioactive nucleus to form a lighter more stable nucleus. The alpha particle is equivalent to a helium nucleus, which means it contains 2 protons and two neutrons (net charge of +2)
The decay equation is:
Rn → Po + α
Answer:
The activity of 50mg of Sr is 
Explanation:
Every nuclear disintegration follows the first order rate, thus the half-life (t1/2) is 
where k is the constant of the reaction.
<em>Considering 1 year equals 3.15x107 seconds</em>
For Sr with t1/2 = 
, the constant of the reaction is
The activity (A) of a nucleus is 
where N is the number of nucleus. Sr molecular mass is 87.6g/mol and every mol contains 6.023x1023 atoms, thus
Therefore, the activity of 50mg of Sr is
