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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
What side does electrons flow from in a battery?
Outside the battery:
- The path for conventional current goes from the positive terminal (+, usually a red wire) to the negative terminal (−, usually a black wire).
- A wire's electrons flow from the negative (−) terminal to the positive (+) terminal.
Since the current forms a continuous a loop in the same direction, the direction inside the battery is "backwards".
Inside the battery:
- Conventional current flows from the negative (−) terminal to the positive (+) terminal.
- Positive ions flow from the negative (−) terminal to the positive (+) terminal.
- Negative ions flow from the positive(+) terminal to the negative (−) terminal
Conventional current assumes that all flowing charges are positive. It simplifies the situation because it hides the more complicated electrons, positive ions, and negative ions.
What are the atoms subatomic particles?
The proton, neutron and electron are the three subatomic particles.
Protons and neutrons are formed from quarks and gluons.
The proton and neutron carry a (nearly) identical mass.
m_p = 1.673 * 10^-27 kilograms
m_n = 1.675 * 10^-27 kilograms
while the electron is considerably smaller and much less massive.
m_e = 9.110 * 10^-31 kilograms
For those unfamiliar with scientific notation, those numbers are:
m_p = .000000000000000000000000001673 kg
m_n = .000000000000000000000000001675 kg
m_e = .000000000000000000000000000000911 kg
Protons carry a positive electric charge while electrons carry an equal and
opposite negative charge. Neutrons are electrically neutral.
Is FADH2 an electron acceptor?
No, FADH2 is in the "accepted" state. FADH+ is the form of the molecule that is able to accept electrons.
Is a neutrino smaller than gluon?
A quark may be one of several categories: up (+2/3 charge), down (-1/3 charge), charmed, strange, top, and bottom. A quark, generally speaking, has no subparticles of its own that are generally accepted or discussed, but, in terms of size, the gluon, the gauge boson that mediates the "glue" force between the quarks can be construed as "smaller" in size than a quark.
What is the subatomic particle with a neutral part?
it's a neutron. it has a slightly larger mass than a proton (positive charge) and over a thousand times the mass of an electron (negative charge). the neuron carries no charge.
What is a protons relative mass?
The relative mass of a proton measures around 1.0073, "relative" here being defined with respect to the atomic mass unit (or Dalton), a twelfth the mass of a carbon-12 atom in its ground state. So it's convenient to say a proton or neutron's relative mass is roughly 1 (the neutron being just barely heavier).
The relative mass of a substance is much more convenient to use than the actual mass since it is such a tiny fraction of the everyday units of mass.. the approximate number of protons it would take just to get one gram would be about six hundred thousand billion billion!
What is the technical term for a molecule gains an electron?
It depends on which way it "lost" its electron. Ionization is the word for a charged atom, such as that of an atom which has lost or received an electron. Both Na+ and Cl- are ions and the sodium ion is the one who has lost an electron, while the chloride ion on the other hand has gained an electron.
Which subatomic particles can move and which cannot?
All is in motion. Until it gets to absolute zero.
What is the maximum number of electrons that can be contained in the third electron level?
3 s = 2
3 p = 6
3 d = 10 so 18 total
What is the subatomic particle that was discovered in 1932?
Neutron: James Chadwick, 1932
Electron: J. J. Thomson, 1897
Proton: Ernest Rutherford, 1919
What is the symbol of an ion that has 20 protons 20 neutrons and 18 electrons?
The atomic number always equals to the number of protons. which in this case, is 20
Which of the three subatomic particles proton electron or nuetron has the least mass?
Electrons have the least mass, with protons and then finally neutrons.
Is a tachyon faster than a photon?
I Dont Know But They Travel Faster Than The Speed Of Light They Look At It As A Lower Species That They Cant Tamper With So Im Guessing Maybe 20 Times Faster Than The Speed Of Light Put In Space If We Had That Kind Of Speed We Would Have To Be Very Percise What Planet Or What Part In Space To Stop To But If We Had That Kind of Speed We would Be Able To Get To Mars In A Nano Second And You Should Look Up Dark Matter If We Found Dark Matter We Would Be Able To Actually Bend Space And Go To Different Galaxies in about 5 Minutes The Universe Would Be Ours To Explore But If We Found Dark Matter Today It Would Deal A Very Nice Blow To be Able To Find Tachyon Since Tachyon Is Drawn To Dark Matter But Since We Havent Found It Today It Would Take 50 To 100 Years Unless Our Governments Merged And Had One Currency It Would Be About Maybe 35 Years With Really Good Effort And Since Thats Unlikely To Happen It Goes Back Up To 100 Years But If Supposedly We Were Able To Go To Space The Next Day We Would Have Problems With Strong Enough Materials To Withstand Space Outside Of Our Ozone Layer Things As Small As A Grain Of Sand Could Pierce A Space Shuttle And Everyone Would Be Sucked Out Into The Vast Wonders Of Space. (Sorry For Getting Of Topic Lol.
What is the average mass of a proton or a neutron?
The mass of a proton is approximately 1.67*10-27 kg.
The mass of an electron is approximately 9.11*10-31 kg.
1.67*10-27 kg / 9.11*10-31 kg = 1833
A proton is about 1833 times heavier than an electron.
Differentiate between a proton neutron and electron?
A proton has a positive charge, a neutron has NO charge and an electron has a negative charge. All three are spin 1/2 particles and therefore fermions, however, protons and neutrons are each comprised of three elementary particles called quarks, making them baryons, whereas electrons aren't made out of any quarks, making them leptons. The lack of quarks in electrons mean they don't interact with the strong nuclear force, whereas protons and neutrons do. Additionally, protons and neutrons are much more massive, about 2000 times so, than electrons.
When you add two up quarks and one down quark you get this?
A two quark particle is called a meson. They consist of a color - anticolor pair, which produces "white." Examples of mesons include pions and kaons.
Where are electrons located in the nucleus?
The electrons are not in the nucleus, they are around the atom in a "probability cloud" due to heisenburgs uncertinty principle.
What is meant by the electrons in an atom are arranged in shells?
Really they should have used the words spherical layers. Most atoms have more than one layer of electrons rotating around the nucleus.
What element has 12 electrons and 12 protons?
Magnesium (Mg)
Bottom number is the proton number.
Top number is mass number = Protons + Neutrons
Therefore no. of neutrons = Top - Bottom number
In atom proton number = electron number.
However if it was an ion of Mg e.g. Mg+ then its electron number would be 13 and its proton number would be 12.
Hope this will help.
P.S I gave you the extra info as you will now be able to work out WHY!
:D
What is a sentence with Subatomic Particles?
Although both made entirely from the element carbon, the atomic structure of diamond is different from that of graphite.
Which subatomic particle identifies an atom as that of particular element?
The number of protons defines the element.
