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Last updated 6 years ago

Chemical Elements

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Chemical Properties - Fairly reactive - Very common to oxidize - Ignites at 302 F - Toxicity is unknown

The Basics - Atomic Number: 62 - Atomic Mass: 150 - Protons: 62 - Neutrons: 88 - Electrons: 62 - Boiling Point: 1,794 C or 3,261 F - Melting Point: 1,074 C or 1,965 F - Category: Metal - Sub-category: Lanthanide - Period: 6 - Group: none

Physical Properties - Silver color - Metalic luster - Solid state at room temperature - Density is 7.54 g/cm3

When combined with cobalt (SmCo5) it forms the magnet mos resitant to demagintization.

Named after the mineral smarskite, which is named after a Russian mine official, Colonel Samarski.

It has no biological role, but it thought to stimulate metabolism.

Great element to work with in chemistry becuase it can change oxidation states very easily.

Fifth most common rare element, four times as much as tin.

It is never found free in nature, but instead in minerals.

A brief history... Samarium was first observed by Jean Charles Galissard de Marignac in 1853 in Sweden. It was oficially discovered by Paul Emile Lecoq de Boisbaudran in 1879 in Frace.

Uses - absorber in nuclear reactors - permanent magnets - lasers - absorbs infared light in optical glass - date samples from the moon - carbon-arc lighting in movie industry


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