Chemistry, 17.07.2019 20:00 ScardeySpider

Which particle decomposes to produce beta radiation?

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The particle that decomposes to produce beta radiation is NEUTRON.

The neutron decays (udd) into a proton (uud), an electron and an anti-neutrino. This process is known as neutron beta decay and here is how it happens.

The neutron that has a charge of zero is made up of up and two down quarks. One of the down quarks is transformed into an up quark. Since the down quark has a -1/3 charge and the up quarks has a positive charge of 2/3, it immediately follows that this process is mediated by a virtual W particle which carries away a negative charge. The new up quark rebounds away from the emitted W-. Then comes the formation of a proton. An electron and antineutrino them emerge from the virtual W-boson. The proton, electron, and antineutrino will finally move away from one another,

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Neutron

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Yes it would be a physical change.

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most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

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