which metal is used in most accurate atomic clocks
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The first accurate atomic clock, a caesium standard based on a certain transition of the caesium-133 atom
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It is Cesium-133.
It emits electromagnetic radiation of saveral wavelengths.
A particular radiation is selected which corresponds to the transition between the two hyperfine levels of ground state of Cs-133.
Each radiation has a time period of repetition of certain characteristics.
the time duration in almost 9.2x10^9 time periods of the selected transition is defined as 1 s.
It emits electromagnetic radiation of saveral wavelengths.
A particular radiation is selected which corresponds to the transition between the two hyperfine levels of ground state of Cs-133.
Each radiation has a time period of repetition of certain characteristics.
the time duration in almost 9.2x10^9 time periods of the selected transition is defined as 1 s.
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