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Cesium has 37 isotopes, the most of any element on the periodic table. One of Cesium's most stable isotopes undergoes beta decay to form Barium-135. Which of the following is the correct isotopic notation for the original Cesium isotope before it decayed?

Cesium Has 37 Isotopes The Most Of Any Element On The Periodic Table One Of Cesiums Most Stable Isotopes Undergoes Beta Decay To Form Barium135 Which Of The Fol class=

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Cesium has 37 isotopes. One of Cesium's most stable isotopes undergoes beta decay to form Barium-135. 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

What is beta decay?

Beta decay is a radioactive decay in which a proton is converted into a neutron or vice versa inside the nucleus of the radioactive sample.

In beta decay, an electron is ejected which increases the atomic number.

135Cs55 ⇒135Ba56  + 0e-1

Cesium      Barium      beta particle

Thus, 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

Learn more about beta decay.

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