大象传媒

Fusion reactions - Higher

In a star, hydrogen fuse together to form helium nuclei.

This happens in several steps, but one way to simplify the overall change is:

\(_{1}^{2}\textrm{H} +~ _{1}^{3}\textrm{H} \rightarrow _{2}^{4}\textrm{He} +~ _{0}^{1}\textrm{n}\)

Two hydrogen nuclei fuse to produce a helium nucleus and a .