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It is made in very small qunatities through a nuclear reaction of bismuth. Neutron irradiation of 209 bismuth (atomic number 83) gives 210 polonium (atomic number 84). 209 Bi + 1 n → 210 Po + e-Metallic polonium can be fractionally distilled from the bismuth or electrodeposited onto a metal surface such as silver. In alpha decay Thus polonium-210 (mass number 210 and atomic number 84, i.e., a nucleus with 84 protons) decays by alpha emission to lead-206 (atomic number 82). Mininote app.
Atomic Number 84 Metal
alpha decay
Atomic number: 36: Atomic mass amu 83.798: Atomic mass pm 116: Density at STP g/cm3 0.00375: Number of protons: 36: Number of neutrons (typical isotopes) 80; 82-84; 86: Number of electrons: 36: Electron configuration Ar 3d10 4s2 4p6: Oxidation states: 0: Electron affinity kJ/mol — Electronegativity Pauling scale 3: First.
- In alpha decay
Thus polonium-210 (mass number 210 and atomic number 84, i.e., a nucleus with 84 protons) decays by alpha emission to lead-206 (atomic number 82).
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death of Arafat
- In Yasser Arafat: From agreement to the second intifāḍah
…had discovered elevated levels of polonium-210 on some of Arafat’s clothes and personal belongings. French prosecutors launched a murder investigation later that year in response to a request by Arafat’s widow. In November 2012 Arafat’s remains were exhumed so that teams of Swiss, Russian, and French experts could test for…
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polonium
Atomic Number 12
- In polonium
…common natural isotope of polonium, polonium-210, has a half-life of 138.4 days.
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