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Part I : Ions Directly from Periodic Table
- All metals, charges are positive and is the number of column from Left to right of Periodic Table (Na1+ - sodium ion)
- All non-metals, charge is negative and is the number of column from Right to Left from Noble Gases (S2- - sulfide ion)
- Only Hydrogen has both, H1+ - Hydrogen ion and H1- - Hydride ion
Part II : Here are the Polyatomic Ions that 2022-2023 students NEED TO MEMORIZE
- Phosphate, PO43-
- Sulfate, SO42-
- Nitrate, NO31-
- Hydroxide, OH1-
- Carbonate CO32-
- Ammonium NH41+ (Only CATION POLYATOMIC IONS)
Part III : Cations with More than One Charge and a Few Cations can figure out from Periodic Table (NEED TO MEMORIZE)
- Copper (I) - Cu1+
- Copper (II) - Cu2+
- Iron (II) - Fe2+
- Iron (III) - Fe3+
- Silver - Ag1+
- Zinc - Zn2+
- Nickel - Ni2+