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Particle Physics
Relatively recent experimental results have confirmed what philosophers throughout history had theorized all along; that all matter is made up of elementary particles. Those curious about this cutting-edge field of physics known as particle physics should post their questions here, including those about fundamental particles, fundamental forces, Grand Unified Theories, and the extraordinary devices that have been or need to be engineered to research them.
3,842 Questions
How is a beta particle produced?
A beta particle is produced in a process called beta decay, in which a neutron becomes a proton or vise versa. There are two forms of beta decay:
- normal beta decay - a neutron becomes a proton, a beta particle (i.e. electron) and an antineutrino
- antibeta decay - a proton becomes a neutron, an antibeta particle (i.e. positron) and a neutrino
What substance particle has a negative charge and less mass than a proton?
This particle is the electron.
What can be inferred about the mass of ang electron?
The mass of an electron is approximately 9.11 x 10^-31 kilograms, which is significantly lighter than the mass of a proton or neutron. This implies that electrons contribute minimally to the overall mass of an atom.
How many grams of antimatter are needed to react with 5 g of matter?
Exactly 5 grams of antimatter will completely annihilate 5 grams of matter, producing an enormous shower of high energy gamma rays. In total a mass of 10 grams will be converted to the equivalent amount of energy.
Werner Heisenberg proposed in 1927 the uncertainty principle.
What is The kind of motion explained in particle theory?
In particle theory, motion is often explained as the movement of particles through space. The particles can exhibit various types of motion, such as linear, circular, or random motion, depending on the forces acting upon them. Overall, particle theory helps us understand how objects move and interact at a very small scale.
No. A photon is a particle of light. It is massless.
That depends on the energy of the beta particles and the medium they are passing through.
In air beta can travel several inches to several feet.
Beta cannot pass through a single layer of aluminum foil.
What technology helped scientists learn about quarks?
The quark model was independently proposed by Murray Gell-Mann and George Zweig in 1964. This was well before computers were powerful enough to analyze any data from particle accelerator collision observations (the CDC 6600 supercomputer was just introduced that year).
The devices for making these observations at the time were cloud chambers, bubble chambers, spark chambers, etc. and photographs of the trails were taken and visually analyzed by humans.
It probably was not until the late 1960s when minicomputers became widely available that data from more advanced detectors could be collected and the data disks or tapes taken to large scientific mainframes for computer analysis.
So the actual technologies used to develop the model were:
- particle accelerators - e.g. van de graaff machines, cyclotrons, synchrotrons, betatrons
- detection devices - e.g. cloud chambers, bubble chambers, spark chambers
- photography
- measurement tools - e.g. protractors, length scales
- electromechanical calculators
- etc.
How do you write out the electron configurations of solutions?
Solutions are mixtures of one or more solutes dissolved in a solvent. They do not have electron configurations. Only atoms and ions have electron configurations.
Why does antimatter anihilate matter and Would a positron anihilate a muon or a quark?
A positron is the antiparticle of an electron; in other words, it is an alternate name for the "anti-electron". Therefore, a positron would anihilate with an electron.
I am not sure about the "why".
Pion is another name for "pi meson". They're mesons composed of an up or down quark and an up or down antiquark. "Mixed" mesons (one up, one down) are charged;the form where both the quark and antiquark are up or down are neutral.
Is a neutron pushing on another neutron a electric force?
Neutrons have no electric charge so there isn't an electric force. Only with electrons and protons.
What is givin off when electrons in an atom fall to a lower orbit?
Energy (in the form of photons) is given off when electrons in an atom fall to a lower energy level.
Why is the electron transport chain characterized as aerobic?
Aerobic respiration - final electron acceptor is oxygen (O)
Anaerobic respiration - final electron acceptor can besulfate (SO42-), nitrate (NO3-), sulfur (S), or fumarate....
Why electron doesn't replel in an orbit?
Electron doesn't repel in an orbit however they are same charged particle, but same charged particles always repel. This is due Meson's theory of charged particles, he says electrons doesn't repel because they have one orbital different and another different.
What is the total amount of protons and neutrons in an atom?
The total amount of protons and neutrons in an atom is its mass number.
Why neutron mass is greater of proton mass?
A neutron could split into a proton plus an electron during the radioactive decay..
How many total electrons are transfered in the following reaction 2Na Cl?
Two total electrons are transferred in the reaction 2NaCl. Two electrons are lost from the sodium but gained for the chloride.
What are the names of 16 discovered fundamental particles in nature?
Fundamental particles include:
1. photon
2. electron
3. positron
4. proton
5. anti-proton
6. neutron
7. anti-neutron
8. neutrino
9. anti-neutrino
10. Higgs particle
11. muon
12. pion
13. top quark
14. bottom quark
15. up quark
16. down quark
17. strange quark
18. charm quark
Why subatomic particles are called fendamental particles?
Not all of them are; the only direct subatomic part of the atom that is fundamental is the electron (which is a type of lepton.) Only particles made up of no smaller parts are called fundamental particles. For example, the proton (just like the neutron, except with a small difference) is not a fundamental particle because it is made of quarks, which are fundamental particles.
How many subatomic particles in potassium oxide?
Potassium oxide is K2O.
It has 46 protons and 46 electrons (19 + 19 + 8 = 46).
If the most stable isotope of K and O are used (K-39 and O-16), then there will be 48 neutrons (20 + 20 + 8 = 48).
So the total number of sub atomic particles will be 140(46 protons + 46 electrons + 48 neutrons).
