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All of the nuclei listed, in each of the following choices, can enter into fusio

ID: 1793833 • Letter: A

Question

All of the nuclei listed, in each of the following choices, can enter into fusion reactions that release energy in the centers of stars, at various stages of their lives, except ____. (Note: the atomic number for each nucleus is given in parentheses.)

hydrogen (1), helium (2), oxygen (8) & sulfur (16)

carbon (6), oxygen (8), silicon (14) & sulfur (16)

tritium (1), carbon (6), magnesium (12) & sulfur (16)

deuterium (1), helium-three (2), carbon (6) & silicon (14)

hydrogen (1), helium (2), carbon (6) & iron (26)

a.

hydrogen (1), helium (2), oxygen (8) & sulfur (16)

b.

carbon (6), oxygen (8), silicon (14) & sulfur (16)

c.

tritium (1), carbon (6), magnesium (12) & sulfur (16)

d.

deuterium (1), helium-three (2), carbon (6) & silicon (14)

e.

hydrogen (1), helium (2), carbon (6) & iron (26)

Explanation / Answer

Helium atoms in high mass stars wii be converted into carbon and oxygen. Then these carbon and oxygen undergo fusion and transformed into neon, sodium, magnesium, sulfur and silicon. Later these will be convered to heavy elements.

So answer : B