Sodium

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by sk497a86r
Last updated 4 years ago

Discipline:
Science
Subject:
Chemical Elements
Grade:
11

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Sodium

The name Sodium comes from the English word soda; the symbol Na comes from the Latin word natrium.

-Noble Gas Electron Configuration:(Na): [Ne] 3s1-Sodium has 1 Valence Electron

Sodium has a multitude of isoptopes, which range from Na-18 to Na-37, but only three common kinds.The only stable isotope of sodium is Na-23. Sodium has two radioactive isotopes: Na-22 (which has a half-life of approx. 2.6 years) and Na-24 (which has an expected half-life of about 15 hours). With the excpetion of these, all other isotopes have half-lives under a minute, some under a second.

Who discovered Sodium?Sir Humphrey Davy discovererd sodium in 1807.

Half-life: the time taken for the radioactivity of a specified isotope to fall to half its original value.

Alkali Metals are very reactive metals and are found in Group 1 on the Periodic Table. Like all metals, the alkali metals metals are good conductors of heat and electricity. They are also malleable and ductile.

According to radiochemistry.org, Sodium costs approximately 15 to 20 cents per pound.

Fact: Typical fire extinguishers are ineffective on sodium fires. They can actually increase the emergency

Melting Point: 97.72 degrees celciusBoiling Point: 883 degrees celcius

Fact: Alone, sodium can be explosive. When combined with chlorine, sodium becomes table salt.

Fact: Powdered sodium can spontaneously combust in the presence of oxygen

-11 Protons-11 Electrons-12 Nuetrons(in most abundant isotope)-Atomic Number: 11-Atomic Mass: 22(approximately)-Mass Number: 23


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