TED-Ed: Just how small is an atom? - Jonathan Bergmann

The video explains the concept of atoms, their incredibly small size, and their structure. It uses the analogy of a grapefruit filled with nitrogen atoms to illustrate the number of atoms, comparing them to blueberries filling the Earth. The video delves into the structure of atoms, highlighting the nucleus's size and density, and the vast empty space within atoms. It concludes with a review of these concepts, emphasizing the nucleus's high density by comparing it to fitting billions of cars into a small box.

How many nitrogen atoms are in a grapefruit if each atom is the size of a blueberry?

• As many as blueberries in a basket

• As many as blueberries in the Earth

• As many as blueberries in a car

• As many as blueberries in a house

What is found at the center of an atom?

• Neutrons

• Protons

• Electrons

• Nucleus

If an atom is the size of a football stadium, what is the size of the nucleus?

• A golf ball

• A tennis ball

• A small marble

• A basketball

How is the size of the nucleus described when the atom is enlarged to the size of a house?

• Invisible

• Barely visible

• Clearly visible

• Larger than a marble

What primarily occupies the space between the nucleus and electrons in an atom?

• Neutrons

• Protons

• Empty space

• Electromagnetic fields

What is the density of a typical nucleus compared to?

• A single car

• A thousand cars

• A hundred cars

• 6.2 billion cars

What contains almost all of the mass of an atom?

• Electrons

• Nucleus

• Protons

• Neutrons