Physical chemistry of solid surfaces. Lecture 4 郭修伯. Surface. A large fraction of surface atoms per unit volume 1 cm 3 cube of iron -> surface atom 10 -5 % 1000 nm 3 cube of iron -> surface atom 10%. Fig 2.1. Table 2.1. Surface energy. Origin
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number of broken bonds
surface atomic density
when brake into two pieces
half bond length