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This is lithium with 127 anu.
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Not the bottom part; this is a model
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and this is the wooden base it sits on.
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Here's iron, 1008 anu.
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Here's neon, 360 anu.
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Now look at neon, and that is a 4f orbital electron density,
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calculated by quantum mechanics.
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Now the question is, why would you believe me,
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or believe a textbook, or believe a quantum mechanician,
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and not believe them?
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Because they said they saw it too. Okay?
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Well it takes time.