Lawrencium
Summary
What it is
Common uses
Public Perception
Anxiety level
Cultural claims
Source sentiment
History
Timeline
Origin
Science
Key findings
Studies
Safety status
Nuance
Alternatives
Swaps
Avoidance tips
References

Fact-checked by Lucent 3 months ago

Lawrencium

ingredientHeavy Metals

Total Sources: 50

Verified Claims: 28

Scientific Sources: 22

Also known as: Lr

Summary

Lawrencium (Lr) is a synthetic, radioactive element in the actinide series with atomic number 103 [5]. It is not found naturally and is produced artificially in nuclear reactors and accelerators [6]. Due to its radioactivity and short half-life, lawrencium has no practical applications outside of scientific research [6].

What it is

Lawrencium is a transuranic element, meaning it has an atomic number greater than that of uranium [6]. It is a member of the actinide series, located at the end of the series [6], [5]. Lawrencium's most stable isotope, lawrencium-266, has a half-life of approximately 11 hours [6].

Public Perception

Anxiety level

Lawrencium itself does not elicit high anxiety due to its limited presence in everyday life. However, discussions of nuclear materials and radioactive elements can sometimes raise concerns [6].

Source sentiment

Due to its radioactivity and limited availability, lawrencium is primarily encountered in scientific contexts. Discussions surrounding lawrencium often involve its synthesis, properties, and placement in the periodic table [27], [32].

History

Timeline

1961

Lawrencium was first synthesized [5], [27].

1969

The chemical properties of lawrencium began to be explored [27].

1975

Lawrencium was introduced as a MeSH term [5].

1997

The naming dispute surrounding lawrencium and other transuranic elements was resolved by IUPAC [31].

Origin

Lawrencium was first synthesized in 1961 at the Lawrence Radiation Laboratory (now Lawrence Berkeley National Laboratory) by a team led by Albert Ghiorso [27]. The element was named after Ernest Lawrence, the inventor of the cyclotron particle accelerator used in its synthesis [27].

First appeared: 1961

Science

Key findings

  • Lawrencium is a synthetic element not found naturally [6].

  • It is radioactive and decays relatively quickly [5].

  • Lawrencium's chemical properties have been studied to determine its placement in the periodic table [27].

Studies

MeSH Database Information

Lawrencium is a radioactive actinide element with atomic number 103 [5].

Transuranic Elements

Lawrencium is artificially produced and has short-lived isotopes, making it an unlikely health concern in most scenarios [6].

Quantities, Symbols, Units, and Abbreviations in the Life Sciences

Provides information on symbols and units related to elements [9].

Safety status

Lawrencium is a radioactive element and poses a health hazard due to its emission of alpha particles [6], [5]. Exposure can lead to adverse health effects. However, due to its extremely limited production and short half-life, it poses a minimal risk to the general public [6].

Nuance

The placement of lawrencium in the periodic table has been a subject of debate, with some arguments for placing it under lutetium as the final actinide and others for placing it as a transition metal [27], [32].

Alternatives

References

1.

https://www.who.int/publications/i/item/9241205059