Question

nuclear fusion

1. nuclear fusion is the combination/bringing together of elements to make elements.
2. in the main sequence, stars are fusing two hydrogen atoms to make helium.
3. nuclear fusion can make all elements up to (# ).
4. what other stage of a stars life cycle can nuclear fusion occur?

Explanation:

1. Nuclear fusion combines lighter elements to form heavier ones.
2. In main - sequence stars, hydrogen fusion to helium is common.
3. Nuclear fusion in stars can produce elements up to iron (atomic number 26).
4. Nuclear fusion can also occur in red - giant and red - supergiant stages when heavier elements are fused.

Answer:

1. Lighter; heavier
2. Already given as correct information in the statement.
3. Iron; 26
4. Red - giant and red - supergiant stages