Mon Prof Augmenté
Building a Water Molecule
Water is made of two hydrogen atoms joined to one oxygen atom. Chemists write it as H₂O, and the three atoms sit at an angle instead of in a straight line.
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Age 13: open this week
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In the picture
- Oxygen atom — the large red sphere at the centre of the model.
- Hydrogen atom — the smaller white sphere on the left.
- Chemical bond — the short grey rod joining that white sphere to the red one.
- Liquid water in the beaker — billions of these three-atom units together.
Examples
- The water you drink from a glass is made of these H₂O molecules.
- Steam from a boiling kettle is the same molecules, moving fast and spread far apart.
Key takeaways
- One water molecule is two hydrogen atoms bonded to one oxygen atom.
- The molecule is bent, with an angle of about 104.5 degrees between its two bonds.
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