Question

name the element used in atomic clock what is an atomic clock and why is the used element suitable for it

Answer 1

These metals are also very malleable, ductile and good heat and electrical conductors. Cesium is incredibly accurate at timekeeping and is used in atomic clocks. ... Cesium is the 50th most common element in Earth's crust, according to PeriodicTable.

Answer 2

Cesium-133 atom is used in the atomic clock.
& this is used because two cesium clocks (or just atomic clocks) may differ by only 1 s after running for a long time span of about 5000 years....