Mon Prof Augmenté
Tiny Center in a Vast Arena
Age 14 · Physics
An atom has a tiny, dense center called the nucleus. Its electrons are much farther away, so most of the atom is open space.
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In the picture
- Central bead: the atom’s tiny, dense nucleus
- Outer glowing speck: an electron far from the center
- Wide floor span: the large distance between the center bead and the outer specks
Examples
- A football stadium with a pea at the center and a few insects near the outer wall.
- A large cathedral with a grain of sand in the middle and tiny moths near the far doors.
Key takeaways
- Atoms are mostly open space.
- The nucleus is much smaller than the distance to the electrons.
Quiz: Tiny Center in a Vast Arena (Age 14)
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Which statement best describes an atom?
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How does the nucleus compare with the distance to the electrons?
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Where is an electron in an atom?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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