Protons Definition and 337 Threads

  1. B

    The Effects of Adding/Removing Protons to an Atom

    Is it possible to remove a proton from an atom and then as a result will the element of the atom will change? Would anything else need to be remove to keep an equal balance in an atom, ex. neutron or electrons? How much radiation would be created by removing a proton.Is more rediation...
  2. C

    Calculating Protons after 2 Seconds - R and C Values

    1. A capacitor where C=1X10^-5 F and R= 1X10^6, there's 1000 electrons on the plate at t=0. How would I find the number of protons after 2 seconds? 2. half life= .7Tm, mean life=RC [b]3. I put the R and C values into get the mean life and got an answer of 7 seconds, and than to...
  3. S

    Attract Electrons with Protons: Is It Possible?

    [COLOR="Lime"]:zzz: :confused: :confused: I would like to know if you can create a false but almost irrisitable ground in which electons have an attraction like a magnet. For example if it were to lightning outside I would like to create a charge in which the electricty thinks my path chosen is...
  4. D

    Protons + Neutrons + Electrons =?

    Protons + Neutrons + Electrons =? This question has been boggling my mind for some time, hopefully some of you can shed some light on the subject. What would happen if one were to shoot a beam of Protons, a beam of neutrons, and a beam of electrons next to each other? I've made a little diagram...
  5. T

    Nucleus of an atom contains only neutrons and protons?

    thanks hootenanny:wink: im not sure if my teacher had set this question wrongly or not? because I am finding it hard to answer. the question goes: TWO statement below are INCORRECT. which are these 2 statements? A.) the nucleus of an atom contains only neutrons and protons. B.)The...
  6. A

    KE of electron being attracted by 2 protons

    Hi everyone, I have a problem regarding this question. An electron is and it is being attracted to 2 stationary protons. The 2 protons are at a vertical distance of 6x apart and the electron passes through the centre of the line joining the 2 protons (3x below the top proton and 3x above the...
  7. G

    Calculating Closest Approach of Colliding Protons

    Hi Guys, I was just wondering if you could help me, I seem to be having some problems getting to the correct answer (possibly because of my calculations). If two protons collide head on, both with energy 2keV... show that the closest approach is 7.2 x 10exp-11 cm. Now I know that when the...
  8. A

    Two Protons Colliding- Stable Nuclei?

    Hi, I'm new to this forum, so I'm sorry if I've posted this in he wrong catergory. Anyway, I'm studying AS physics at the moment and my teacher was giving the class some lessons about the strong nuclear force and electrostatic repulsion of nucleons making the nucleus stable. To get to the...
  9. N

    Spherical distribution of negative charge with two protons

    Imagine a sphere of radius a filled with negative charge of uniform denisty, the total charge being equivalen to that of two electrons. Imbed in this jelly of negative charge two protons and assume that in spite of their presence the negative charge distribution remains uniform. Where must the...
  10. A

    How Do Protons Hit a Target Under Electric Field Influence?

    Protons are projected with an initial speed of v0 = 9550 m/s into a region in which a uniform electric field E = 720N/C [down] is present. The protons are to hit a target that lies a horizontal distance of 1.27mm from the point at which the protons are launched. a) find the two projection...
  11. A

    Calculate the protons kinetic energy

    for the following question: a proton with the total energy E=3E0please calculat the proton's (a) kinetic energy (b) velocity (c) momentum (d)mass my problem: 1) can someone double check my work? (a)Ek=2EE0 (c) p=[8^(0.5)]EE0/c (d) I've tried (mc^2)^2 + Ek^2...
  12. A

    Thompson cross section for protons?

    I have read about "Thompson Cross section for free electrons" My problem is there must be the other cross sections photons are scattered by free electrons. photons must be scattered by aka protons and as well by alpha particles. Is there any defined cross sctions for the other particles as...
  13. T

    How Far Must Protons Be to Equate Electrostatic and Gravitational Forces?

    The question is how far apart must two protons be for the magnitude of the electrostatic force acting on either one of them to be equal to the force acting on a proton at Earth's surface due to gravity? I calculated the force acting on a proton at the Earth's surface, very small of course...
  14. T

    How Much Does 1ml of Protons Weigh?

    Can someone show me how to figure out the mass of 1ml. of protons? I have been out of school for 20yrs. and have no clue as to how to do this.[
  15. G

    Q's about Electrons, protons, and neutrons

    This might be a dumb question, but in all my years of chemistry and physics studies I have never gotten an explanation of where electrons and protons get their charges from. I don't know if this is the right forum, maybe one of the physics forums might be better? Maybe a physical chemist can...
  16. W

    Why spinning protons have precession under magnetic field?

    And this phenomenon also occurs in neutrons?
  17. W

    Why protons and neutrons have spins?

    Their spin quantum numbers are 1/2 and -1/2. How to explain these in terms of quarks?
  18. S

    Temperature dependency of the Larmor Frequency for protons in NMR

    Anybody who know something about the temperature dependency of the proton Larmor frequency say for protons in pure water? I am sure people with experience in NMR spectroscopy know. Any good articles/references? I am not asking about: -temperature dep of the proton density beeing...
  19. S

    Atoms whose protons have been stripped off can fuse?

    A plasma consists of both ions and uncharged particles of gases. Is it possible for the uncharged particles to fuse or only atoms whose protons have been stripped off can fuse?
  20. Andrew Mason

    AZING: 3e11 GeV Protons Discovered in Utah Sky

    http://www.symmetrymag.org/cms/?pid=1000063&printable=1 describes detection of cosmic rays with unbelievable energies: This is a proton with 20 joules of energy - about the same energy as a well driven golf ball in mid-flight. The thought occurred to me that (if we can figure out where these...
  21. T

    Magnetic fields and a stream of protons

    I have tried everything to solve this problem, and I just cannot come to a conclusion. If anyone finds it comes easy to them, help will be greatly appreciated. :) Here goes: A straight stream of protons passes a given point in space at a rate of 1.5x10^9 protons/s. What magnetic field do...
  22. K

    Protons Decaying: The Possibility and Impact of Proton Decay in the Universe

    Do proton's decay? and if so, what do they turn into? and can they decay when they are in a nucleus? I read a theory on how the universe will end up being a sea of electrons, and what protons become when they decay.
  23. M

    Help! Lost in Electrons & Protons: Solving My Homework Puzzle

    :blushing: I am getting confused. electrons, protons, which finger goes where in the left hand rule... agh! lol, I am muddling myself all up. i understand the rule (well i hope i do by now as that means the rest of my homework is wrong) but the last question of my h/w is almost killing me...
  24. J

    Protons to accelerate a space probe

    Okay ppl, I have a question, I'd just like you to check that my working here is correct. Q: A space probe of mass m=490kg is driven by an ion propulsion motor that involves the use of positive ions, each of mass m=2.18*10^-25 kg and having a charge of magnitude e=1.6*10^-19 C. These ions...
  25. W

    Do protons also exist as proton waves similar to the electron waves ?

    Do protons also exist as "proton waves" similar to the "electron waves"? Akira Tonomura has written a book called "The Quantum World Unveiled by Electron Waves" published in 1998 by World Scientific. In his book, he explains that in 1955 G. Moellenstedt and H. Dueker of Tuebingen University in...
  26. W

    Can protons emit-absorb virtual photons?

    Can protons emit-absorb "virtual" photons? Does a free single proton behave like a free electron in the sense that it emits and absorbs "vitrual" photons as it interacts with another free or bound proton? Are there any special conditions under which protons emit and absorb "virtual" photons?
  27. T

    Inside the Atom: Quarks Arrangement in Neutrons & Protons

    Neutrons and protons consist of quarks right? my question is ;has anyone theory as to how are they aranged inside of protons/neutrons?. one orbits another or whatever?
  28. W

    Theory of Magnetic Fields of Electrons and Protons

    PART 1. Magnetic Field of Electron The electron and the proton both have Magnetic Moments. By definition (Penguin Dict. of Physics, 1991) the term Magnetic Moment means: 1. SYMBOL, m,: "A property possessed by a permanent magnet or current-carrying coil, used as a measure of the...
  29. C

    Protons & Electrons: How Do They Just Keep Flying?

    Protons electrons... What prevents electrons and protons from being stuck togeather? how do they just keep flying around the protons and nutrons?
  30. K

    Why are protons positive. Why are electrons negative? Why do they attract?

    Despite studying chemistry I've never actually been given this information, any explanations/theories that could possibly explain why?
  31. C

    Protons, Electrons & Nuclear Forces: Explained

    If opposites attract, why don't electrons crash into the nucleus. I've been told its because the electon is spinning so fast, it orbits, but I know this can't be so because then at absolute zero, the electron should then crash inward or even at a higher temperature. Or is it the "weak nuclear"...
  32. P

    How Is Magnetic Field Generated by a Stream of Protons?

    A stream of protons passes a given point in space at a rate of 10 E9 protons/second. What mafnetic fiel do they produce 2.0 m from the beam? i think i would use I= 1.6 E-19x10 E 9 and then B=(permativity of free space x I)/(2pir) using 2.0 as r? am i totally off or close?
  33. P

    What is the magnetic field produced 2.0 m from a stream of 10 E9 protons/second?

    A stream of protons passes a given point in space at a rate of 10 E9 protons/second. What magnetic field do they produce 2.0 m from the beam? Kind of know where to start, but not exactly. the current would be 10 E9 multiplied by 1.6 E-19 i think. and then i think i would use B=(permativity...
  34. C

    Proton or Electron: Who's Faster?

    Hey there guys... I got a question for are you whiz's... Let's say you place an electron and proton a certain distance from each other and allow them to accelerate towards each other. Just before the collision, which is moving faster?
  35. benzun_1999

    Charge in the electrons and protons

    dear reader, the electrons are negative and protons are positive was proved by jj thompson. he proved it using the discharge tube. the cathode rays which started from the cathode(-) to the anode(+) was said to be negative because of its attraction to the anode. is there any other...
  36. benzun_1999

    Quarks make the neutrons and protons

    dear reader, Does anyone know about Quark. i know that quarks make the nutrons and protons. But i still don't understand it clearly. Benzun
  37. J

    Protons: Stability, Decay & Half-Life

    Do protons decay or are they completely stable? If they do then what is their half-life?
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