What is the equation of a positron emission from silicon?

Answer 1

Silicon-26 is a synthetic isotope of silicon; it is a man-made isotope. Additionally, silicon-26 is pretty unstable, and it has a half life of only about 2.234 seconds. This unstable isotope of silicon undergoes beta plus decay, which is also called positron emission. The result is the creation of an atom of aluminum. In the positron emission of silicon-26, let's start with the equation. Here it is: 1426Si => 1326Al + e+ Here we see Si-26 become Al-26. Inside the silicon-26 nucleus, the weak interaction (weak force) mediates the conversion of a proton into a neutron. When that happens, the silicon atom changes into an aluminum atom because there is one less proton in that used-to-be silicon nucleus. The atom's atomic number goes down by one, and the silicon becomes aluminum. This is an example of nuclear transmutation; it is the conversion of one element into another. We also see a positron (e+) leave the nucleus in the event, and this is why we sometimes call this type of beta decay positron emission. The positron that leaves this decay event has a great deal of kinetic energy, and it's really flying when it is ejected from the nucleus. The Al-26 that results is itself unstable, and the excited nucleus is a gamma emitter. Eventually though, the Al-26 "settles down" a bit. It has a really long half-life - some 7.17 x 105 years. It, too, will eventually decay, but it might undergo beta plus decay, or it could undergo electron capture. In either case, it becomes magnesium-26, which is stable.

Answer 2

You can't detect a positron aka, anti-electron. You have to prove super-symmetry first which will include String theory, otherwise know as M-theory. ( membrane theory)

Edit : I'm not answering the question, but I am questioning the answer.

As far as I know the positron was first detected about 80 years ago.

I don't think those modern theories are relevant.

Answer 3

It yeilds a stable isotope of Aluminium,

14Si27 -------> 13Al27 + e+

Answer 4

Si-26 ---> +1e + Al-26

Answer 5

14Si28 ---->13Al28 + e+