Nucleus (chemistry)

The video explains the composition of an atom's nucleus, highlighting that it contains protons and neutrons. These particles are significantly heavier than electrons, resulting in the nucleus holding almost all of the atom's mass.

What particles are found in the nucleus of an atom?

• Neutrons and electrons

• Only protons

• Protons and neutrons

• Electrons and protons

Which particles are significantly heavier than electrons?

• Only electrons

• Neutrons and electrons

• Electrons and protons

• Protons and neutrons

Where is most of an atom's mass located?

• In the protons only

• In the nucleus

• In the orbiting electrons

• In the neutrons only

Which of the following is true about the nucleus?

• It contains only electrons

• It is lighter than the electrons

• It contains almost all the atom's mass

• It is made up of only protons

What is the primary reason the nucleus is so massive?

• It is made of light particles

• It contains electrons

• It contains protons and neutrons

• It is very large in size