how many neutrons a phosphorus-32 atom has...?
how do you know?
2007-12-30 19:48:54 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
phosphorus-X
the X represents the total number of protons and neutrons
All phosphorus atoms have 15 protons (atomic number=15)
Therefore, we can calculate the number of neutrons by doing the follow
X-protons=neutrons
32-15=17 neutrons
[Answer: 17 neutrons]
2007-12-30 19:52:39 · answer #1 · answered by ¿ /\/ 馬 ? 7 · 0⤊ 0⤋
'Normal' Phosphorus (P31) has 16 Neutrons, its Isotope P32 has 17 Neutrons.
2007-12-30 20:05:13 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋
Phosphorus atomic number is 15 which is the same as the number of protons. subtrat 15 from 32 and you get 17 which is the number of neutron
2007-12-30 19:55:48 · answer #3 · answered by hill2625@sbcglobal.net 2 · 0⤊ 0⤋
Alright. The atomic number (the number of protons) is 15.
So if you have phosphorus-32, the number of protons AND neutrons is 32.
So its simple, just subtract 15 from 32, and your answer is how many neutrons it has.
32-15=17
So it has 17 neutrons
Hope this helped :)
2007-12-30 19:55:36 · answer #4 · answered by :) 4 · 1⤊ 0⤋