· by robert campion version 1 .4 18 4.002602 2372.3 helium 20.1 797 2080.7 neon 39.948 1520.6 ......
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Standard Periodic Table
- Candidates should memorise and be familiar with the first 20 elements of the Periodic Table.
Periodic Table with Electron Shells
- Candidates should memorise and be familiar with the first 20 elements of the Periodic Table.