Elements Organized by Period
- Page ID
- 35505
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- Period 3 Elements
- Covers the elements sodium to argon in Period 3 of the Periodic Table. Includes trends in atomic and physical properties of the elements, some selected reactions of the elements, and some properties of their oxides, chlorides and hydroxides.
- Period 6 Elements: The Lanthanides
- The Lanthanides consist of the elements in the f-block of period six in the periodic table. While these metals can be considered transition metals, they have properties that set them apart from the rest of the elements.
- Period 7 Elements: The Actinides
- The Actinide series contains elements with atomic numbers 89 to 103 and is the third group in the periodic table. The series is the row below the Lanthanide series, which is located underneath the main body of the periodic table. Lanthanide and Actinide Series are both referred to as Rare Earth Metals. These elements all have a high diversity in oxidation numbers and all are radioactive. The most common and known element is Uranium, which is used as nuclear fuel when its converted into plutonium