experimental
Entry: Lead - showing version 4
URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_05c8b5fe
[Wikipedia] Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements.
Core metadata
| is a | Concept | feature of interest |
| changed on | 17 Nov 2023 08:31:48.652 |
| submitted by | Hélène Bressan |
| accepted on | 22 May 2023 15:05:03.090 |
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| date accepted |
22 May 2023 15:05:03.090
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| date submitted |
22 May 2023 13:21:09.513
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| definition |
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| description |
[Wikipedia] Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements.
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Concept
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| modified |
17 Nov 2023 08:31:48.652
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| notation |
c_05c8b5fe
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| register |
mots clefs
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| status |
status experimental
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| type |
register item
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| version info |
4
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Definition
| alt label |
Pb
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| description |
[Wikipedia] Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements.
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| exact match |
c 05c8b5fe
| 4723
| 20828
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| in scheme |
Vocabulaire des mots clefs
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| same as |
c 05c8b5fe
| 4723
| 20828
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| top concept of |
Vocabulaire des mots clefs
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| type |
Concept
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| was attributed to |
Pole THEIA
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