Núcleo (química)

The video explains the structure of an atom, focusing on the nucleus, which contains protons and neutrons. These particles are significantly heavier than the surrounding electrons, making the nucleus responsible for nearly all of the atom's mass.

What particles are found at the center of an atom?

• Electrons only

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

Which particles are heavier in an atom?

• Protons

• Electrons

• Both protons and neutrons

• Neutrons

What accounts for most of an atom's mass?

• Neutrons only

• Electrons

• The nucleus

• Protons only

Which of the following is not found in the nucleus?

• None of the above

• Protons

• Neutrons

• Electrons

Why does the nucleus contribute most to the atom's mass?

• It contains electrons

• It is larger in size

• It contains heavier particles

• It is denser