consider the three equations below.\n$_{7}^{14}n + _{1}^{1}h\\longrightarrow_{8}^{15}o$\n$_{2}^{4}he +…

consider the three equations below.\n$_{7}^{14}n + _{1}^{1}h\\longrightarrow_{8}^{15}o$\n$_{2}^{4}he + _{2}^{4}he\\longrightarrow_{4}^{8}be$\n$_{14}^{28}si + 7_{2}^{4}he\\longrightarrow_{28}^{56}ni$\nwhich statement do these reactions best support?\no beta decay occurs only in certain atoms.\no alpha decay occurs only in certain atoms.\no chain reactions play important roles in the process of nuclear fission.\no nuclear fusion plays an important role in making elements that are heavier than helium.

consider the three equations below.\n$_{7}^{14}n + _{1}^{1}h\\longrightarrow_{8}^{15}o$\n$_{2}^{4}he + _{2}^{4}he\\longrightarrow_{4}^{8}be$\n$_{14}^{28}si + 7_{2}^{4}he\\longrightarrow_{28}^{56}ni$\nwhich statement do these reactions best support?\no beta decay occurs only in certain atoms.\no alpha decay occurs only in certain atoms.\no chain reactions play important roles in the process of nuclear fission.\no nuclear fusion plays an important role in making elements that are heavier than helium.

Answer

Explanation:

Step1: Analyze the reactions

The given reactions show lighter - nuclei combining to form heavier nuclei. For example, in $\ce{^{14}{7}N + ^{1}{1}H\rightarrow^{15}{8}O}$, nitrogen and hydrogen combine to form oxygen; in $\ce{^{4}{2}He + ^{4}{2}He\rightarrow^{8}{4}Be}$, two helium nuclei combine to form beryllium; and in $\ce{^{28}{14}Si + 7^{4}{2}He\rightarrow^{56}_{28}Ni}$, silicon and multiple helium nuclei combine to form nickel. This is characteristic of nuclear fusion.

Step2: Evaluate each option

  • Beta decay involves the emission of a beta - particle (electron or positron) from a nucleus and is not shown in these reactions.
  • Alpha decay involves the emission of an alpha - particle ($\ce{^{4}_{2}He}$) from a nucleus and is not the main process here.
  • Chain reactions are associated with nuclear fission, not shown in these combination reactions.
  • The reactions show nuclear fusion making heavier elements from lighter ones.

Answer:

Nuclear fusion plays an important role in making elements that are heavier than helium.