Mnemonic Device:
- Harry He Likes Beer But CanNot Obtain Food
Explanation: to remember the first nine elements of the Periodic Table
- Hydrogen 1, Helium 2, Lithium 3, Beryllium 4, Boron 5, Carbon 6, Nitrogen 7, Oxygen 8, Fluorine 9
Mnemonic Device:
Explanation: to remember the first nine elements of the Periodic Table
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