In Lecture 13 at 39 minutes, what is the Professor talking about when he says that they bombard silicon atoms with neutrons to make phosphorus because it changes the z-number? There are so many things wrong with that. You would make a new isotope but it would still be silicon. Additionally, the z-number is the number of protons, and has nothing to do with how many neutrons you add.
OCW Scholar - Introduction to Solid State Chemistry
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Ahhh I'm thinking that the silicon must undergo beta decay afterwords and the professor skipped this point.
well i think atoms of silicon is hit with neutrons
more ovre z does not change only the mass no changes
I asked myself the exact same question when I watched that lecture. I like it when they leave something out (or even make a few mistakes) because it forces me to stay alert. Anyhow, I looked it up and yeah, the silicon undergoes beta decay. Also, according to what I read online (I don't remember where, sorry) neutron bombardment is an uncommon process for doping silicon.