Woodridge, IL is in the northeastern part of Illinois in the east north central United States. Is In Woodridge, IL These Counties: DuPage County, Will County, Cook County. Neighboring Cities to Woodridge, IL:
The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive. Because alkali metals are so reactive, they are found in nature only in combination with other elements.
Lanthanum and its compounds are considered to be moderately toxic. Characteristics: Lanthanum is a silvery-white soft metal, which can be cut with a knife. It is ductile, malleable and exposed surfaces tarnish rapidly in air forming the oxide. Lanthanum reacts with water to form lanthanum hydroxide plus hydrogen gas. Lanthanum is chemically reactive and forms compounds with carbon, nitrogen, boron, selenium, silicon, phosphorus, sulfur, and with the halogens. Lanthanum usually exists as a trivalent ion, La 3+ , in its compounds.