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The number of neutrons in an einsteinium atom is 99.
One of the most interesting elements in the periodic table, this element was discovered in 1952. Physicists at the Argonne Laboratory, Los Alamos National Laboratory and the University of California at Berkeley were examining debris left behind by the first hydrogen bomb test in November 1952.
The team, led by Albert Ghiorso, found minuscule amounts of the element in the debris (less than 200 atoms). In 1955, it was named after scientist Albert Einstein as an honor for his contributions to science.
Einsteinium is an actinide element that is the seventh transuranic element to be discovered. It was formed in the explosion of the first hydrogen bomb, Mike, in November 1952 and was kept secret for a few years because it is extremely rare.
This element is a member of the actinide group, which has similar properties to the lanthanoids europium and ytterbium. It is a tripositive, meaning it can oxidize in a +3, -3, or +1 state; it also has a face-centered cubic crystal structure and a metallic luster.
A proton is a positively charged particle with an actual charge of +1.602 x 10-19 coulombs. It is the smallest and most fundamental of all matter.
Its diameter is 2.4 x 10-13 cm.
The number of protons in an atom is 114 and the number of electrons is 126. Each atom has an outer shell of electrons and a central shell of protons.