The New ELement Mendelevium, Atomic Number 101

Technical Report · Mon Apr 04 00:00:00 EST 1955

DOI:https://doi.org/10.2172/914464· OSTI ID:914464

Ghiorso, A; Harvey, B G; Choppin, G R; Thompson, S G; Seaborg, G T

We have produced and chemically identified for the first time a few atoms of the element with atomic number 101. Very intense helium ion bombardments of tiny targets of 99{sup 253} have produced a few spontaneously fissionable atoms which elute in the eka-thulium position on a cation resin column.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USAEC
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 914464
• Report Number(s): UCRL-2943; TRN: US200809%%256
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC NUMBER
ATOMS
CATIONS
HELIUM IONS
MENDELEVIUM
RESINS
TARGETS