Fig. 112. §7 Atoms
Atom
Everything around you is made of atoms.
1Facts
- Shelf
- Atoms
- Kind
- Built from a recipe
- Sound
- Yes
- Licenses
- Public domain
2How to play
Tap it to speed up the electrons. Pick any of the 118 elements in the Splash tab.
3Its controls
Table I. Every control on this Splash.
| Control | Kind | Range | Start |
|---|---|---|---|
| Speed up the electrons | Tap | ||
| Electrons | Slider | 0 to 100% | 50% |
| Energize | Button | ||
| Element | List | 118 choices | 6 Carbon |
| Nucleus | List | 2 choices | Simple |
| Style | List | 2 choices | Bohr |
4About it
Everything around you is made of atoms. Each one has a tiny heavy center, the nucleus, made of protons and (in almost every atom) neutrons, with electrons around it. The number of protons decides which element it is: carbon has 6, oxygen 8 and gold 79. Pick any of the 118 elements in the Splash tab.
This model draws the electrons in rings called shells, an idea of Niels Bohr's from 1913; pick the Cloud style for a truer picture, or Every nucleon to see all its protons and neutrons. Tap it and the electrons whirl faster until each shell blurs into a glowing ring, then slow down. The nucleus is tens of thousands of times smaller than the whole atom, which is mostly empty space.
5Details
- Splats
- Opens at 200,000 at Mid Detail, 60,002 at Low, and up to 1,000,000 at Max
6Sources and credits
| Work | By | License |
|---|---|---|
| Atomic Weights and Isotopic Compositions; Atomic Spectra Database ground levels | NIST Physical Measurement Laboratory; PubChem; IUPAC (elements 95 to 118) | Public domain (facts) |
