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Physics

Physicists finally create 'textbook' atom

18 March 2009

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The technique to create the textbook atom was inspired by Lagrange points (pictured) – regions of space where gravity from different sources cancels out

(Image: NASA/WMAP Science Team)

THINK of an atom, and chances are you’ll picture something that looks like a tiny solar system. You’d be wrong, but never fear: researchers have engineered an atom that looks just like you think it should.

When the atomic nucleus was discovered a century ago, the solar system analogy was obvious. The nucleus’s mass and charge would force electrons to circle it, just as the sun’s gravity holds orbiting planets. But quantum mechanics…

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