Chemistry

5 pages

• Knowledge Atoms, Bonds, and Drawings

  Rung zero of the chemistry ladder: atoms as an electron ledger, bonds as shared pairs, and the skeletal shorthand chemists actually draw in.

• Knowledge Clayden: Organic Chemistry

  A map of organic chemistry before you learn any of it: forty-three chapters compressed into seven ideas and about a dozen elementary steps.

• Knowledge Orbitals, Shape, and Polarity

  Rung one of the chemistry ladder: where electrons actually sit, why molecules have the shapes they do, and what makes one end of a bond richer than the other.

• Knowledge Shells and the Periodic Table

  The bottom of the chemistry ladder: why the periodic table has the shape it has, and how the octet, the valence count and electronegativity all fall out of one rule about filling boxes.

• Knowledge The Curly-Arrow Alphabet

  The twelve elementary steps that every organic reaction is built from, and the push-and-pull timing that turns two of them into the whole of polar chemistry.