Chemical Formulae
- Created by: AConfusedDuck
- Created on: 02-01-18 11:54
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- Chemical Formulae
- Names to Formula
- Mono-One Di-Two Tri-Three Tetra-Four Penta-Five Hexa-Six
- E.G. Carbon Monoxide= CO
- -ide=Two -ite=Three (one being Oxygen) -ate Three (one being Oxygen)
- Valency
- The combining power of atoms
- Group No12345678 Val12343210
- Depends on number of outer electrons
- Can be used to work out formula
- Write symbol of involved elements
- Write valency of each beneath
- Swap valencies
- Simplify
- Write formula
- E.G. Potassium Oxide K O 1 2 2 1 K20
- Write formula
- Simplify
- Swap valencies
- Write valency of each beneath
- Write symbol of involved elements
- When Including Ion Groups...
- Just do exactly the same thing, but instead of writing the element symbol, write the ion symbol. Valency of ion groups are found in the data book.
- Roman Numerals
- Some elements, especially transition metals, have no fixed valency. This means that valency is the roman numeral.
- Names to Formula
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