[Answer] An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction it has 82 protons and 84 neutrons. What happened to the atom?

Answer: It emitted an alpha particle in a nuclear reaction.
An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction it has 82 protons and 84 neutrons. What happened to the atom?

The fission of one atom of uranium-235 releases 202.5 MeV (3.24 × 10 −11 J) inside the reactor.That corresponds to 19.54 TJ/mol or 83.14 TJ/kg. Another 8.8 MeV escapes the reactor as anti-neutrinos. When 235 92 U nuclides are bombarded with neutrons one of the many fission reactions that it can undergo is the following (shown in the adjacent image):

Nuclear fission of heavy elements was discovered on December 17 1938 by German Otto Hahn and his assistant Fritz Strassmann at the suggestion of Austrian-Swedish physicist Lise Meitner who explained it theoretically in January 1939 along with her nephew Otto Robert Frisch.Frisch named the process by analogy with biological fission of living cells. For heavy nuclides it is an exothermic …

The neutron is a subatomic particle symbol n or n 0 which has a neutral (not positive or negative) charge and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.Since protons and neutrons behave similarly within the nucleus and each has a mass of approximately one atomic mass unit they are both referred to as nucleons.

In nuclear physics the island of stability is a predicted set of nuclear physics the island of stability is a predicted set of

Hassium is a chemical element with the symbol Hs and the atomic number 108. Hassium is highly radioactive; its most stable known isotopes have half-lives of approximately ten seconds. One of its isotopes 270 Hs has magic numbers of both protons and neutrons for deformed nuclei which gives it greater stability against spontaneous fission.Hassium is a superheavy element; it has been produced …

Nuclear fission was discovered…

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