Lead: Difference between revisions
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Sith Venator (talk | contribs) (I think a policy that substances or elements don't need a list of appearances section would be nice, Oxygen's and water's section would be HUGE) |
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{{SeeWikipedia|Lead}} | {{SeeWikipedia|Lead}} | ||
'''Lead''', symbol Pb (Latin plumbum, a lead weight) | '''Lead''', symbol Pb (Latin plumbum, a lead weight) is a dense, bluish-gray metallic element that was one of the first known metals. Thousands of years since its discovery, humanity still uses the material in construction. The atomic number of lead is 82; the element is in group 14 (or IVa) of the periodic table. | ||
Metallic lead is a soft, malleable, ductile metal, often used to make bullets. Lead is toxic when taken internally, although this is usually not a problem with ammunition. | Metallic lead is a soft, malleable, ductile metal, often used to make bullets. Lead is toxic when taken internally, although this is usually not a problem with ammunition. | ||
Revision as of 10:42, June 18, 2018
Lead, symbol Pb (Latin plumbum, a lead weight) is a dense, bluish-gray metallic element that was one of the first known metals. Thousands of years since its discovery, humanity still uses the material in construction. The atomic number of lead is 82; the element is in group 14 (or IVa) of the periodic table.
Metallic lead is a soft, malleable, ductile metal, often used to make bullets. Lead is toxic when taken internally, although this is usually not a problem with ammunition.
Because of its high density and nuclear properties, lead is used extensively as protective shielding for radioactive material.
Lead is used by the UNSC in the construction of SOEIV drop capsules[1], radiation lining to protect reactor engineers from lethal exposure[2], and was used by the surviving Spartan-II's in Operation: FIRST STRIKE to reinforce a captured T-25 TC "Spirit" from radiation and stress during exit from slipspace on its own.[3]
List of appearances
- Halo: The Flood (First appearance)
- Halo: First Strike
- Halo: Ghosts of Onyx
Sources
- ^ Halo: The Flood, page ??
- ^ Halo: Ghosts of Onyx, page ??
- ^ Halo: First Strike, page ??
