Fusión nuclear

The video explains how atoms combine to form a major atom, releasing energy if the resulting nucleus is lighter than iron. This process is known as nuclear fusion, which is responsible for generating energy in stars. In stars, hydrogen and helium undergo fusion to form heavier elements, contributing to the energy output of stars.

What happens when atoms combine to form a nucleus lighter than iron?

• The atoms disintegrate.

• The nucleus becomes unstable.

• Energy is released.

• Energy is absorbed.

What is the primary process responsible for energy generation in stars?

• Nuclear fusion

• Chemical reactions

• Gravitational collapse

• Nuclear fission

Which elements are primarily involved in nuclear fusion in stars?

• Silicon and sulfur

• Iron and nickel

• Carbon and oxygen

• Hydrogen and helium

What is the result of burning hydrogen and helium in stars?

• Complete disintegration of elements

• Formation of lighter elements

• No change in element composition

• Formation of heavier elements

Which of the following is NOT a result of nuclear fusion in stars?

• Energy generation

• Formation of heavier elements

• Release of light

• Absorption of energy