9192631770
1200
A cesium-133 atom makes 9,192,631,770 cycles per second. Divide it by 4.5 million: 9,192,631,770 / 4,500,000 = 2042.807 Divide 1 second by 2042.807 and the result is 4.895 *10^-4 seconds. If you multiply it by 10^6 you get microseconds: 4.895*10^-4 * 10^6 microseconds/second and that equals 489.5 microseconds.
No
Francium is more reactive.
nanosecond
It all has to due with ionization energy. Ionization energy is the energy required to remove an electron from an atom to make it an ion. Cesium has a lower ionization energy than Lithium, so it is easier to remove electrons, and thus lose electrons, from a Cesium atom than a Lithium atom.
With a stop watch or a clock. If you're asking how do we determine what a second is (In the SI- International system of units), then that is determined by the oscillation of a Cesium Atom's Microwave. No matter what the conditions, the cesium atom's full oscillation will always equal one second. No matter where in the world. Really neat phenomenon.
Not at all; the cesium atom is far bigger than the lithium atom.
Cesium
2.35
The atom of the isotope caesium 133; the definition of second in SI is based on this atom.
9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom
9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom
It's Cesium.....
Atom
A cesium-133 atom makes 9,192,631,770 cycles per second. Divide it by 4.5 million: 9,192,631,770 / 4,500,000 = 2042.807 Divide 1 second by 2042.807 and the result is 4.895 *10^-4 seconds. If you multiply it by 10^6 you get microseconds: 4.895*10^-4 * 10^6 microseconds/second and that equals 489.5 microseconds.
i think its one
No