As far as i know, which isnt much; im in 10th grade, Phosphorus is not Radioactive, and cannot undergo a nuclear reaction. also, 29P = 145 Electrons, and it generally doesnt make any sort of reaction unless the end result has a full valence level. or an empty one. now if the 1H gives up it's 1 electron, it would bring the total electron count for the Phosphorus to 146, and 146/8=18.25, and it does not seem as if it will be possible for the two to combine. unless you do something like.... um....1H+1P=7 Electrons, which would get you a close to full valence level for the combination. Then you would have 28P left over though, and unless i am totally missing out on something, this does not seem very possible.

The atomic number of phosphorus is 15, so there are 15 electrons in a neutral atom (far fewer than 145 and I can't imagine where you got that number from), but electrons don't enter into this problem because electrons effect chemistry and this is a question about nuclear physics; the proton (H) slams into the 15 protons and 14 neutrons of P to give a photon and 16 protons and 14 neutrons of sulfur-30, which of course will decay.