The standard atomic weight for cesium is 133. There are 3 other radioactive cesium isotopes that have atomic weights of 134, 135, and 137. Cesium 133 is the only one that is found in nature. The other isotopes are synthetic.
The atomic number of cesium is 55. The number of neutrons is the isotope mass number minus atomic number, or in this instance 86 neutrons.
The element is cesium (Cs) and the cation is Cs^1+
It's 399g.
5
Only one naturally occurring isotope of cesium is known, cesium-133 (133Cs) which is not radioactive. A number of artificial radioactive isotopes of cesium are known also. One radioactive isotope of cesium is of special importance, cesium-137. It is produced in nuclear fission reactions. Read more on cesium in the link below.
You are looking for the symbol of cesium (Cs) and indication of its mass number. The mass number is the sum of the protons and neutrons. So if every atom of cesium has 55 protons, then the mass number of this isotope is 137. The mass number is indicated in superscript before the symbol: 137Cs
One atom of cesium has a mass of 132.9054 amu, and one mole of cesium has a mass of 132.9054 grams, so five moles of cesium has a mass of 664.527 grams.Multiplying the mass of a particle (which can be an atom, molecule, etc.) by Avogadro's number (6.022x1023, the number of particles of a substance in 1 mole) will give you the mass of a mole of that particle, or molar mass, in grams. Avogadro's number is special because the molar mass of a substance will be the same number as its atomic mass, only in grams!
The atomic number of cesium (Cs) is 55.The atomic weight of Cs is 132.91 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
neutron plus protons = mass number cesium
The atomic number of cesium is 55. The number of neutrons is the isotope mass number minus atomic number, or in this instance 86 neutrons.
In atomic form (as opposed to being an ion), cesium-137 has 55 electrons, just as all cesium atoms have.
399
Manganese is a metal element. Mass number of it is 55.
cesium phosphide.
the molar mass is 168.36 g/mol
The answer is 399 grams
The element is cesium (Cs) and the cation is Cs^1+