these two radioactive elements decay by electron capture (EC). Write the nuclear reactions for each decay including the formation of the daughter products:
a. 35 S + 0 e →
16 -1
b. 69 Sr + 0 e →
35 -1
It will make better sense if you write these like this since it is difficult to write superscripts and subscripts.
Atomic number/symbol/mass number, then add left numbers for final atomic number and add right numbers for the final mass number.
16S35 + -1e0 ==> 15P35 + neutrino + gamma ray
You do the other one. I can check your work if you wish.
https://en.wikipedia.org/wiki/Electron_capture
what is neutrino
Google neutrino. It has no charge and no mass but is a product of electron capture along with a gamma ray.
To write the nuclear reactions for the decay of elements by electron capture (EC), you need to know the atomic numbers and mass numbers of the parent elements and the atomic numbers and mass numbers of the daughter products.
a. For the decay of element S (Sulfur), the atomic number of sulfur is 16, so the parent element is represented as 35S (since 16 + 16 = 32). The atomic number of the daughter product will be 15 (since 16 - 1 = 15).
The nuclear reaction for this decay can be written as:
35S + 0e -> 35Cl
b. For the decay of element Sr (Strontium), the atomic number of strontium is 38, so the parent element is represented as 69Sr (since 38 + 38 = 76). The atomic number of the daughter product will be 36 (since 38 - 2 = 36).
The nuclear reaction for this decay can be written as:
69Sr + 0e -> 69Kr
In both reactions, the electron (0e or -1) is captured by the parent nucleus, resulting in a decrease in the atomic number and the formation of a new daughter nucleus. The product is represented using the atomic symbol of the daughter element with the new atomic number.