How to predict the charge on ions using the Periodic Table.

Опубликовано: 25 Август 2024
на канале: Wayne Breslyn (Dr. B.)

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In this video, we'll explore how to predict the charge on ions using the periodic table. By observing a pattern, we can determine the charges of elements when they gain or lose electrons. For example, elements in Group 1 always lose one electron, resulting in a 1+ ionic charge. Group 2 elements have a 2+ charge, while we typically skip the transition metals because their charges depend on what they're bonded to, though they always have a positive charge.

Moving further, elements in Group 13 have a 3+ charge, Group 14 can have a 4+ or 4- charge, and then we go to Group 15 with 3-, Group 16 with 2-, and Group 17 with 1-. Noble gases, in Group 18, are neutral and have a charge of zero.

This trend is a good general guideline, though there are some exceptions. For example, zinc typically forms 2+ ions, and silver usually forms 1+ ions. So, that's how you can predict the charge on ions using the periodic table—just memorize the trend.

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