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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 subatomic particles could be changed without changing which element the atom?

You are probably referring to neutrons which are often found within the nucleus of an atom in numbers different from the protons. An atom of the element carbon, for instance, normally consists of 12 protons, 12 electrons and 12 neutrons. However, an isotope of carbon known as C13 consists of 12 protons, 12 electrons and 13 neutrons.

What subatomic particles makes an element reactive?

Electrons are the subatomic particles that make an element reactive. Elements react with one another by gaining, losing, or sharing electrons to attain a more stable electron configuration.

What would the charge be if an atom gains an electron and why?

If an atom gains an electron, it will have a negative charge because electrons have a negative charge. The atom will now have more negatively charged electrons than positively charged protons, resulting in an overall negative charge.

Why electrons path is helical?

In a copper wire each copper atom has two loosely coupled outer thermal atoms (this is why copper has a plus 2 valence)

When an electrical current is passed through the copper wire, the two thermal atoms are pushed onto the next copper atom. Temperature of a copper atom depends on how fast the electrons orbit in the respective copper atoms.

Since thermal electrons make up the electric current which flows through the copper wire, the electrons will continue to orbit the copper atoms as they move across, thus travelling along a helical path

Why are electrons not affected by the strong force?

There is no definite answer for this. In simplest terms, the best way to say it is "That's just the way the universe works". When the GUT force was in existence (the strong and electroweak forces were unified [the electroweak is the electromagnetic and weak force unified]), there was what can be thought of as a GUT particle, which I will call X particles. All particles at this time were X particles because there was nothing that could define them; that is, there was nothing to distinguish one particle from another with the exception of gravity (gravity was irrelevant at this time, so do not think about it.)

When the GUT force split into the Strong and Electroweak forces, X particles disappeared from existence. They did not necessarily "disappear"; there was simply a way to distinguish them from one another. The two types of particles that were distinguishable at this point are Hadrons and Leptons (electrons are a type of lepton.)

Although this information is nice, it does not answer your question. In truth, this is a question that will never have a satisfactory answer.

What subatomic particle does every atom of carbon have in common?

Each carbon atom (atom number 6) has 6 protons (in nucleus) and 6 electrons (orbited around), the number of neutrons (also in nucleus) may vary from 6 or (less common) 7 or (rarely) 8.

Which subatomic particle did j j thomason discover and what did this lead him to postulate about the nature of the atom?

J.J. Thomson discovered the electron in 1897. This led him to propose the "plum pudding" model of the atom, where electrons were embedded in a positively charged sphere, suggesting that atoms were not indivisible as once thought.

How many neutrons and electrons are in zinc-66?

well, the isotope number of the atom doesnt matter, as long is it doesnt decay, as it only specifies the number of neutrons which doesn't have a strong affect on the stable number of electrons. Typically, free atoms are stable when they have a netral net charge, Though, if excited with EM waves, the electrons will want to increase in energy, and eventually leave the atom.

For any atom, the number of electrons is simply the atomic number, which for zinc is 30.

though, when zinc is in close proximity to itself or other metals, it bonds metallically, and looses its electrons to have a full p orbital, meaning that the only number of electrons actuall in the atom is 18

when in ionic bond it looses two electrons, and then only has 28 electrons

What element 20 protrons 20 neutrons and 18 electrons?

The element with 20 protons, 20 neutrons, and 18 electrons is calcium. Calcium has an atomic number of 20, which tells us the number of protons in the nucleus. The number of protons and electrons should be equal for a neutral atom, therefore in this case the element is calcium.

A compound that releases a proton when it dissolves in water?

An example of a compound that releases a proton when it dissolves in water is hydrochloric acid (HCl). In water, HCl dissociates into H+ and Cl- ions, releasing a proton. This gives the solution an acidic pH.

What are the three subatomic partials?

The three subatomic particles are protons, neutrons, and electrons. Protons and neutrons are found in the nucleus of an atom, while electrons orbit around the nucleus.

How does the Higgs field affect quantum entanglement?

The Higgs Field has nothing to do with quantum entanglement. Quantum Entanglement is the phenomena that, when a particle decays into two particles, they travel in separate directions. When one particle is observed to be spinning in one direction, then we will immediately know that the other particle is spinning in the opposite direction. However, neither particle is spinning until it is observed, yet the other particle suddenly "decides" which way it is spinning as soon as the first is observed.

Particles interacting with the Higgs Field (all of the particles that exist interact with the Higgs Field) simply take on mass, which depends on the strength of the interaction with the field. If a particle decays, then it will decay into a particle-antiparticle pair. Since all particles and their antiparticle counterparts have the same mass, there is no entanglement.

What is the maximum number of electrons permitted in an orbital?

s-orbitals: 2.

p-orbitals: 6.

d-orbitals: 10.

f-orbitals: 14

(and, only theoretically, interesting: g, h, etc. orbitals with 18, 22, ... etc.)

[Cf. picture of orbital shapes in 'Related links' just below this answer page]

Does magnetic force have energy?

Magnetic force in itself does not store energy, but it can transfer energy when it is doing work, such as moving a charged particle through a magnetic field. The energy associated with magnetic force is generally considered to be potential energy based on the position and orientation of magnetic materials.

Who discovered that atoms contain subatomic particles?

J.J. Thomson discovered the first subatomic particle, the electron, in the late 19th century through his experiments with cathode rays. This discovery led to the understanding that atoms contain subatomic particles.

What does FESEM mean in electron microscopy?

FESEM stands for Field Emission Scanning Electron Microscopy. It is a high-resolution imaging technique in electron microscopy that uses a field emission electron source to produce a fine electron beam for imaging the surface of a specimen at nanoscale resolution.

What is the ideal mechanical advantage of inclined plane?

The ideal mechanical advantage of an inclined plane is the ratio of the length of the incline to the vertical rise. It is calculated by dividing the length of the ramp by the vertical height of the ramp.

What is the splitting of particles?

Particle splitting refers to the process by which a particle breaks down into smaller particles or components. This can occur through various mechanisms such as nuclear fission, where a heavy nucleus splits into lighter nuclei, or particle decay, where a particle transforms into different particles through interactions with other particles. Splitting of particles is fundamental to our understanding of particle physics and plays a crucial role in the behavior of matter and energy at the microscopic level.

What would happen to an object if number of protons and electrons are not equal?

If the number of protons and electrons in an object are not equal, it will have a net charge and become an ion. If there are more protons than electrons, the object will have a positive charge; if there are more electrons, it will have a negative charge. This imbalance in charge can lead to interactions with other charged objects.

How long can a positron exist?

A positron, which is the antimatter counterpart of an electron, can exist for a very short time due to its tendency to quickly annihilate when it encounters a regular electron. This annihilation process typically occurs within a fraction of a second after the positron is created.

What type of physics is the higgs boson involved with?

Particle physics. Specifically, the Standard Model of Particle Physics was centered around the Higgs Boson- had the boson not been found to exist, then modern physics as we know it would be on very shaky ground.

How many neutrons does p32 have?

Phosphorus-32 (P-32) has 16 neutrons. This is determined by subtracting the atomic number, which is 15 for phosphorus, from the atomic mass, which is 32 for phosphorus-32.

What is the major type of subatomic particle NOT found within the nucleus of an atom?

Electrons are the major type of subatomic particle that are not found within the nucleus of an atom. Electrons orbit the nucleus in energy levels and contribute to the atom's overall charge and chemical behavior.