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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 many members are in the photon family?

The photon family consists of one member, which is the photon itself. Photons are elementary particles that carry the electromagnetic force and have zero rest mass.

Are photos made of subatomic particles?

No, photos are not made of subatomic particles. Photos are composed of photons, which are massless particles that carry electromagnetic force. Subatomic particles refer to particles like electrons, protons, and neutrons, which make up atoms.

When the photon is bombarded on the electron in meta-stable state then why the electrons come to the ground state?

all the electrons moving in their orbits have their natural frequency at which hey vibrate. in meta-stable state, when a photon of energy (equal to difference of energies b/w meta-stable and ground state) , electron starts to vibrate at their natural frequency. as a result its amplitude increases, and it moves to ground sate.

Are protons electrons neutrons and quarks equal in mass?

Protons and neutrons are in atomic nuclei, while electrons are located outside atomic nuclei in various probabilities of energetically favored states. Quarks are the fundamental particles that compose the hadron family of particles, of which protons and neutrons are members. Thus, you better believe quarks are found in atomic nuclei! In fact, because of the way the strong nuclear force acts on quarks, they can never be found on their own they are not found on their own at low energies but it is possible that they can become free at extremely high energies, as is the case in the hypothetical quark-gluon plasma. As we can observe them, however, they're always in protons and neutrons (or the various other hadrons).

What is the flow of protons?

No its not, energy can a be a rather vague term, but basically its the amount of work done. The formula for energy is given by Energy = Force x Displacement but there are many other types of energy but generally the flow of protons is not energy however the flow of electrons is. (Electrical Energy) Hope this helps =D

How many electrons are there in 1ampere?

Just plug it into the Current formula. An ampere is one coulomb / second and the formula is I = q / t. Otherwise q / t = 1 amp ; let t = 1 sec q = 1 C ; The charge of an electron is 1.6 x 10^-19 C but is follows that there are 6.25 x 10^18 electrons in one second (inverse of charge). Remember that the amount of electrons in an ampere is dependent on time!

What are protrons and neutrons made of?

Protons and neutrons are made up of smaller particles called quarks. Protons are composed of two up quarks and one down quark, while neutrons are composed of one up quark and two down quarks. Quarks are bound together by the strong nuclear force.

Which subatomic particle is responsible for the static charges in objects?

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This type of electricity is called "static" because the electrons are not flowing through a circuit, as they would in an alternating current or direct current system, like the ones that power the lights in your home and your Xbox 360. Instead, they've accumulated in one place. If they get the chance, these negatively charged particles will transfer someplace else, in attempt to achieve a neutral balance. With lightning and the shock you receive from touching someone's sweater, this process happens very suddenly.

Who invented swearing?

The history of swearing is complex and spans various cultures and time periods. It is difficult to attribute the invention of swearing to a single individual, as the use of profanity and vulgar language has likely evolved over centuries through cultural influences and societal norms.

Which fundamental force is the result of warped spacetime?

Gravity is the fundamental force that is the result of warped spacetime, as described by Einstein's general theory of relativity. The presence of mass and energy warps the fabric of spacetime, causing objects to move in curved paths due to the force of gravity.

How many electrons in human mind?

The human mind does not contain a specific number of electrons as it is not a physical structure that can be quantified in terms of electron count. The mind is a complex network of neurons and synapses that facilitate neural communication, rather than a physical entity that contains a specific number of electrons.

What structural formula represents 4 electrons shared between two atoms?

A structural formula representing 4 electrons shared between two atoms would involve a double bond, where two pairs of electrons are shared. This can be represented as an equal sign (=) between the two atoms in the chemical structure.

Which of the first 20 elements has the most unpaired electrons?

Phosphorus, which is the 15th element, has the most unpaired electrons among the first 20 elements. It has three unpaired electrons in its outer shell.

What subatomic particle is responsible for moving electrical current?

Electrons are the subatomic particles responsible for moving electrical current in a conductor. The flow of electrons from one atom to another creates an electric current.

Neutron activation analysis involves bombarding specimens with neutrons then measuring the resultant?

emission of gamma rays to determine the elemental composition. This technique is commonly used for analyzing trace elements in various materials, such as archaeological artifacts, environmental samples, and industrial materials.

Why 2 electrons in an orbital spin?

According to the Pauli exclusion principle, no two electrons in an atom can have the same set of four quantum numbers. Since electrons are fermions with half-integer spins, the two possible spin states for each electron (up or down) ensure that no two electrons in the same orbital have identical quantum properties. This helps stabilize the atom by minimizing electron-electron repulsion.

What isotope is formed when 28P emits a positron?

In this reaction we see an isotope of phosphorus,28P, undergo beta plus decay. In beta plus decay, a proton in the nucleus of an atom undergoes a transformation wherein an up quark becomes a down quark. This event, mediated by the weak nuclear force (or weak interaction), results in the proton becoming a neutron. When this happens, the atom changes from one element to another element in a process called transmutation. Here we see phosphorus become silicon, and the equation might look like this: 1528P => 1428Si + e+ + ve In this beta plus decay event, we see the phosphorus-28 atom transforming into a silicon-28 atom, and we see the positron (e+) and the neutrino (ve) kicked out of the nucleus on the back side of the event. Some links are provided below for extra investigation.

Does the Photon interact with the Higgs Field?

The Higgs field is a hypothetical field which explains mass. It is believed to be interaction with this field which gives particles mass. The photon is a massless particle, so it must not interact with the Higgs field.

How many electrons protons and neutrons are in As?

Arsenic is a non metal element. There are 33 electrons in a single atom.

What is the weak force in nature?

The weak force is one of the four fundamental forces in nature, responsible for certain types of radioactive decay and interactions between subatomic particles. It is involved in the process of transforming one type of subatomic particle into another, such as in beta decay. The weak force is characterized by its short range compared to the other fundamental forces.

What subatomic particles are responsible for heat conduction?

In a material, heat conduction is primarily carried out by the collective movement of free electrons. These electrons transfer thermal energy through a substance by colliding with atoms and transferring kinetic energy. Additionally, phonons, which are quantized mechanical vibrations in a crystal lattice, also contribute to heat conduction by carrying thermal energy through solid materials.