Question

which is the second step of the fusion process?
○ $_1^1h+_1^1h→_1^2h + e^+ + v+energy$
○ $6(_1^1h)+2(_{-1}^0e)→_2^4he + 2(_1^1h)+energy + 2v$
○ $_1^2h+_1^1h→_2^3he+energy$
○ $_2^3he+_2^3he→_2^4he+_1^1h+_1^1h+energy$

Explanation:

In the proton - proton chain fusion process in stars, the first step is two hydrogen - 1 nuclei fusing to form deuterium. The second step is deuterium fusing with another hydrogen - 1 nucleus to form helium - 3. The reaction $\ce{_{1}^{2}H + _{1}^{1}H
ightarrow_{2}^{3}He + energy}$ represents this second step.

Answer:

$\ce{_{1}^{2}H + _{1}^{1}H
ightarrow_{2}^{3}He + energy}$ option