Bunsen and Kirchhoff gave the new element a name based on the Latin word Caesius (sky or celestial blue) for the two bright blue lines in its spectrum.Ĭesium is the most abundant element on earth and is found in the minerals pollucite, avogadrite, pezzottaite, londonite, rhodicite, beryl and some potassium ores. Cesium was also the first spectroscopically discovered element of the German scientists Robert Bunsen and Gustav Kirchhoff, who had invented the technology last year.

Only one of the known isotopes of cesium is stable (133Cs), but with its 39 isotopes it is associated with xenon, the two elements with the largest amount of known isotopes. Mercury is the only element with a lower melting point. Cesium melts at 28 ° C, making it one of three elements (the others are gallium and mercury) that are liquid at or near room temperature. The heaviest of the stable alkali metals, cesium, has a silvery-golden appearance, is ductile and, with 0,2 on the Mohs scale, the softest element in the periodic table. Although cesium is only mildly toxic, it is considered hazardous because of its high reactivity and is usually packaged in glass ampoules in vacuo or under an inert gas such as argon. The electronic configuration of Cesium will be 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s1.With an electron in the sixth and outermost shell, cesium is the most electropositive of all stable elements in the periodic table: the metal is extremely pyrophoric, ignites spontaneously when in contact with air, and explodes violently in water or ice at any temperature above -116 ° C. How do you write the electron configuration for Cesium? The electronic configuration of Cesium will be 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s1. What is the electronic configuration of Cesium 55? What is the boiling Point of Cesium in Kelvin?īoiling Point of Cesium in Kelvin is 944 K. Melting Point of Cesium in Kelvin is 301.59 K.

What is the melting Point of Cesium in Kelvin? What is the boiling Point of Cesium?īoiling Point of Cesium is 944 K. Cesium has 55 electrons out of which 1 valence electrons are present in the 6s1 outer orbitals of atom. How many valence electrons does a Cesium atom have?Ĭesium has 1 valence electrons. What is the color of Cesium?Ĭesium is of Silver color.

It is located in group 1 and period 6 in the modern periodic table. Cesium is the 55 element on the periodic table. What is the position of Cesium in the Periodic Table?Ĭesium is a chemical element with the symbol Cs and atomic number 55.

Cesium is a chemical element with symbol Cs and atomic number 55.

To form abbreviated notation of electronic configuration, the completely filled subshells are replaced by the noble gas of the preceding period in square brackets. The abbreviated electronic configuration of Cesium is 6s1. What is the abbreviated electronic configuration of Cesium? The electronic configuration of Cesium is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s1. What is the electronic configuration of Cesium? Optical Properties of Cesium Refractive IndexĪcoustic Properties of Cesium Speed of SoundĬesium Thermal Properties - Enthalpies and thermodynamics Refer to table below for the Electrical properties ofCesium Electrical ConductivityĬesium Heat and Conduction Properties Thermal Conductivity Hardness of Cesium - Tests to Measure of Hardness of Element Mohs HardnessĬesium is Conductor of electricity. Refer to below table for Cesium Physical Properties Densityġ.879 g/cm3(when liquid at m.p density is $1.843 g/cm3)

Caesium or cesium