EDIBLE ATOMS

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EDIBLE ATOMS
By T. B.
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• CAS7439-91-0
• Classification
• Metallic
• Neutron 82
• Name Lanthanum
• Symbol La
• Atomic Number 57
• Protons/
• Electrons 57

• Atomic Weight 138.9055(2)g
• Melting Point 920.0 C (1193.15 K, 1688.0 F)
• Boiling Point 3469.0 C (3742.15 K, 6276.2 F)

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• Stable Isotopes 2
• Radioactive Isotopes 9
• Cost per unit 64/100g
• Density at room temperature 292 K 6.7g/cm to
  the third

http//library.advanced.org/11771/english/hi/chemi
stry/periodic.shtml
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Valence Number
220.1
4.15934
No data
No data
115.0
2.17318
No data
No data
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Electron Configuration

• 1s2
• 2s2 2p6
• 3s2 3p6 3d10
• 4s2 4p6 4d10
• 5s2 5p6 5d1
• 6s2

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• Lanthanum is silvery white, malleable, ductile,
  and soft enough to be cut with a knife.

http//www.shef.ac.uk/chem/web-elements/index.htm
l
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• hydrogen sponge alloys containing lanthanum
  reversibly take up to 400 times their own volume
  of hydrogen gas. Heat is released, therefore
  these alloys have potential in energy
  conservation systems

http//www.chemicalelements.com/
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http//www.shef.ac.uk/chem/web-elements/index.htm
l
http//www.chemicalelements.com/
http//www-tech.mit.edu/Chemicool/
http//library.advanced.org/11771/english/hi/chemi
stry/periodic.shtml