Page 128 - The Periodic Table Book
P. 128
100
Fm Fermium
State: Solid
100 100 157 Discovery: 1953
Actinides This artificial element was
named after the Italian scientist
Enrico Fermi. He built the first
nuclear reactor in 1942, starting
the American effort to build nuclear
weapons during World War II.
Fermium was first identified in the
debris of an atom bomb test in 1953.
This unstable element has no known
uses beyond research.
Some
scientists call
Enrico Fermi the
“father of the
atomic age”.
Enrico Fermi
101
Md Mendelevium
101 101 157
State: Solid
Discovery: 1955
periodic table
Mendeleev’s
Mendeleev’s notes from 1869
show his method of arranging
elements in columns and rows.
Mendelevium is named after the Russian
chemist Dmitri Mendeleev, who invented
the periodic table. Mendelevium is produced
in very small amounts by firing parts of helium
atoms at einsteinium atoms in a particle
accelerator (a machine in which atoms
126 Dmitri Mendeleev are smashed together).
126-127_Fermium_Mendelevium_Nobelium_Lawrencium.indd 126 02/12/16 6:53 pm
