Table of Contents
Does Polonium have a low melting point?
Polonium-210 is a low-melting, fairly volatile metal, 50% of which is vaporized in air in 45 hours at 55°C. It is an alpha emitter with a half-life of 138.39 days.
What is the boiling point of Polonium?
What is the boiling point of tellurium?
How poisonous is polonium?
If polonium-210 enters the body, through inhalation, swallowing, broken skin, the results can be fatal. By mass, polonium-210 is one of the deadliest toxins, around 250 billion times more toxic than hydrogen cyanide.
Is Tellurium harmful to humans?
► Exposure to Tellurium can cause headache, fatigue, dizziness, drowsiness and weakness. ► Repeated exposure can cause garlic odor to the breath, nausea, vomiting, loss of appetite and upset stomach, metallic taste and irritability.
What is the rarest stable element on earth?
Astatine is a chemical element with the symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth’s crust, occurring only as the decay product of various heavier elements. All of astatine’s isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours.
How much plutonium is in a nuke?
Nuclear weapons typically contain 93 percent or more plutonium-239, less than 7 percent plutonium-240, and very small quantities of other plutonium isotopes.
Why is the boiling point of polonium less than that of tellurium?
[ref]The outer electron configuration of Polonium could differ so much from its lighter family member tellurium due to the electron constriction, causing an outer electron to fall into a lower shell, that the intramolecular forces are weaker. Thus a lower boiling point. It explains a lot of things that do not seem realistic with very heavy nuclei.
Why are polonium solutions pink and yellow in color?
Polonium solutions are first colored in pink by the Po 2+ ions, but then rapidly become yellow because alpha radiation from polonium ionizes the solvent and converts Po 2+ into Po 4+. This process is accompanied by bubbling and emission of heat and light by glassware due to the absorbed alpha particles; as a result,…
What is the temperature at which polonium decomposes?
Most polonides decompose upon heating to about 600 °C, except for HgPo that decomposes at ~300 °C and the lanthanide polonides, which do not decompose but melt at temperatures above 1000 °C. For example, PrPo melts at 1250 °C and TmPo at 2200 °C.
What kind of crystal structure does polonium have?
Polonium is a radioactive element that exists in two metallic allotropes. The alpha form is the only known example of a simple cubic crystal structure in a single atom basis at STP, with an edge length of 335.2 picometers; the beta form is rhombohedral.