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Helium atom (He)
Helium atom (He)
Helium atom (He)
9 990 Ft
A4 · 21 × 29.7 cm — more sizes coming later
A noble gas: its full K shell leaves it almost unreactive. Two drawings to choose from: ball model or line diagram.
Specifications
| Symbol | He |
|---|---|
| Atomic number | 2 |
| Electron shells | 2 |
| Nucleus | 2 protons, 2 neutrons |
| Molar mass | 4.0026 g/mol |
| Views | ball model and line diagram |
Paper
Blue
Pen
White
- Paper weight
- 300 gsm
- Line width
- 0.4 mm
- Method
- Drawn on a pen plotter