einsteinium, Es, E, atomic number 99(noun)
a radioactive transuranic element produced by bombarding plutonium with neutrons
the chemical symbol for einsteinium, a transuranic element with atomic number 99. The atomic weight of the longest-lived isotope, with a half-life of 276 days, is 254. The first isotope discovered, having atomic weight 253 and a half-life of 20 days, was recognized in 1952 in the debris from a hydrogen bomb test. As much as 3 micrograms of einsteinium were produced by a complex process involving long irradiation of plutonium isotopes in nuclear reactors. Its chemical properties are those of a trivalent actinide element. HCP61
A variant spelling of ess, the letter.
Origin: Contraction of 'e + is or has.
Es is a letter of the Cyrillic script. It commonly represents the voiceless alveolar fricative, like the pronunciation of ⟨s⟩ in "sand".
The numerical value of ES in Chaldean Numerology is: 8
The numerical value of ES in Pythagorean Numerology is: 6
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