# Beautiful Chemistry

### Zn + Pb(NO3)2 –> Pb + Zn(NO3)2, etc.

Want to see something metal? What could be more brutally metal than “lead trees”? Yes, trees of actual lead. A forest of them. And they are chillingly majestic. Granted, they’re tiny and in a solution, but I’m going to overlook that fact.

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# Atomic Orbital Mnemonics

How does one remember SPDFGHIK…? Remembering the S through K orbitals is the trick. After K, it goes alphabetical. (But skipping S and P, because they’ve already been done.) My search for atomic orbital mnemonic devices only turned up one that had sufficient character to stick those eight seemingly arbitrary letters in my mind.

## The Standard Mnemonic

The one I found was pretty good, though:

# Typographic Chemistry

### From the experts at XKCD U.

Disclaimer: DO NOT STUDY THIS. Unless you want to turn out like me. Which is to say, study this.

# Copyright Law and Images for Educational Use

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# How to Name Polyatomic Ions

Here are some simple rules for naming polyatomic ions.

Polyatomic ions with more oxygen atoms will end in -ate, and those with fewer oxygen atoms will end in -ite. When there are more than two polyatomic ions composed of the same elements, the prefix hypo- indicates the least number of oxygen atoms, and the prefix per- will indicate the most oxygen per ion.

Less Oxygen More Oxygen
hypo- -ite -ate per-