The Element Groups Of The Periodic Table

989 words - 4 pages

Group 1, Alkali Metals, consists of the elements: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). Alkali Metals are highly reactive metals. They share the same physical and chemical properties. A similar physical property is that they are soft, and have low boiling and melting temperatures. Plus, Li, K, and Na have lower densities than water. Another physical property, they have weak metallic bonding. Some chemical properties which make these elements similar are that they are strong reducing agents. The combination with oxygen will oxidize the metals. This is why they are stored in oil (ex: Sodium (Na) is stored in mineral oil).
Group 2 are the ...view middle of the document...

Group 18, Noble gases, consists of the elements: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Noble gases are sometimes considered unreactive, because the noble gas elements have "closed-shell configurations". A physical property that noble gases have is that they boil at low temperatures. Another physical property is they all are monatomic. Monatomic means that they all consist of one atom. A chemical property that Group 18 has is some noble gases form no compounds. They like as; helium, argon and neon create no known compounds. Xenon, once combined with oxygen, and fluorine, forms a large variety of compounds. Together, krypton and fluorine create a colorless solid (KrF2).
Transition metals are the elements in the center of the periodic table between groups IIA and IIIA. All of those elements share chemical and physical properties. These chemical properties include: forming colored compounds, are useful as catalysts, and have a high tendency to form complexes. However, the major physical property of the transition metals is, besides copper, the transition metals are white shiny metals. They are also well known for having a high melting point, and a high density.
Rare earth metals are all the elements with the atomic numbers 57 through 71, plus the atomic numbers 21, and 39. These elements share so many properties that it is sometimes hard to distinguish them. Their chemical properties depend on their atomic structure, and size. A chemical property that they have is that they are very hard to be separated. This is because the metals form in minerals, and rocks. The physical properties they have are depended on their beneficial uses. Their physical properties can include electrical, magnetic, and thermal energy. These physical properties can vary between the elements.
Lanthanides are the elements with the atomic numbers 57 through 71. Lanthanides share chemical and physical properties. One chemical property is basicity. Basicity is the measure of ease at which an atom will lose electrons. Lanthanides as well can form oxides when...

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