Exploring the Building Blocks of Matter: Inside the Atom

The video explains the structure of atoms, focusing on subatomic particles: protons, neutrons, and electrons. Protons and neutrons reside in the nucleus, which is tiny but contains most of the atom's mass. Protons have a positive charge, while neutrons are neutral. Electrons, with a negative charge, orbit the nucleus at high speeds, forming an electron cloud. The attraction between protons and electrons keeps the atom stable.

What are the three main subatomic particles that make up an atom?

• Ions, Isotopes, and Elements

• Atoms, Molecules, and Compounds

• Protons, Neutrons, and Electrons

• Nuclei, Shells, and Orbits

Where are protons and neutrons located within an atom?

• In the electron cloud

• In the nucleus

• In the outer shell

• In the atomic orbit

What type of charge do neutrons possess?

• Variable charge

• Neutral charge

• Negative charge

• Positive charge

How many electrons are needed to equal the mass of a single proton?

• 1,000

• 500

• 1,800

• 2,000

What keeps negatively-charged electrons in orbit around the nucleus?

• Magnetic fields

• Gravitational pull

• Force of attraction with protons

• Repulsion from neutrons