lawrencium

Definition of lawrencium

n.1.A transuranic element of atomic number 103. It was discovered in 1961 by bombardment of californium in a cyclotron with boron nuclei. Other isotopes were prepared in 1965 at Dubna. The atomic weight of the most stable isotope is 256, having a half-life of 35 seconds. Symbol Lr.

Related Words

atomic number 103, chemical element, element, Lw
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