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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 can electrons move within a solid?

In a solid, electrons can move through the crystalline lattice structure by hopping from one atom to another. This movement is facilitated by thermal energy which causes the atoms to vibrate, allowing the electrons to navigate through the lattice. Additionally, electrons can also move in response to an electric field applied externally to the solid.

What device do scientists use to study quarks?

Scientists use particle accelerators to study quarks. By colliding particles at high speeds, these accelerators provide valuable information about the properties and behavior of quarks.

How far in can an electron microscope zoom in?

Electron microscopes can achieve magnifications up to 10,000,000x, allowing them to visualize objects at atomic or near-atomic levels. This level of magnification enables researchers to investigate the fine details of materials and biological samples that are not visible with light microscopes.

What are the forces between charges?

The forces between charges are governed by Coulomb's Law, which states that like charges repel each other and opposite charges attract each other. The magnitude of the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Mathematically, the force can be calculated using the formula: ( F = k \frac{{|q_1 \cdot q_2|}}{{r^2}} ), where ( F ) is the force, ( k ) is the electrostatic constant, ( q_1 ) and ( q_2 ) are the charges, and ( r ) is the distance between the charges.

How much antimatter have humans ever made?

We have created 20 nanograms of antimatter. To get you on track, one nanogram is a billionth of a gram.

Antimatter is very hard to make, so far only a very small quantity has ever been produced;

much less than a milligram has ever been produced and yes there is a way to store it. It's called the penning trap.

The penning trap is a container in extreme vacuum and magnetic fields. This is to prevent the antimatter from touching air, since air is made of matter.

What is a type of radioactive decay that involves emission from the nucleus of a high speed antimatter particle that is a counterpart of the electron?

This is beta decay, specifically beta plus decay. The beta particle that appears is the positron, which is the antimatter particle of the electron. Links can be found below for more information.

How much more massive is a proton compared to a electron?

By sheer size, I would assume MUCH larger. But through weight, the proton is much heavier compared to an electron. On any element, the atomic number is the weight of the nuetrons and protons. The weight of electrons is so small and insignificant, it is usual not looked on at the highschool level. And has no effect on the molar mass.

Explain Nuclear forces and their properties-meson theory?

Nuclear forces are the strong forces that hold protons and neutrons together in the atomic nucleus. They are mediated by particles called mesons, which are exchanged between nucleons to produce this attractive force. Meson theory describes the exchange of mesons between nucleons and helps explain the short-ranged nature of nuclear forces and the stability of atomic nuclei.

How many unpaired electrons does K have?

There is merely one unpaired electron in Potassium. The electron configuration of potassium is [Ar]4s^1. This means that potassium has all the electrons of argon, plus one more in the 4s orbital. All the electrons of argon are paired, so the one electron in the 4s orbital is the only unpaired electron.

What is the mass in AMU's of an electron?

1 over 1,836 AMU

Another answer

It's negligible. It has such a low amu that it is not a factor of the overall atomic mass of an atom

How many flavors of quark are there?

As far as we know, quarks are the smallest particles to exist. We have found 6:

- Top

- Bottom

- Up

- Down

- Strange

- Charm

Each of the quarks also has a property called color charge. These are red, green, and blue. Particles that are constituted of quarks must be color neutral. In all, there are 18 different possible types of quarks if one does not count antimatter. When antimatter is taken into account, that number increases to 36.

What is the relationship of the proton number to the elements identity?

The proton number, or atomic number, is the number of protons in an atom's nucleus, and it determines the element's identity. Each element has a unique atomic number, so elements are defined by the number of protons they possess.

Why are the valence electrons of an atom the only electrons likely to be involved in bonding to other atoms?

Valence electrons are the electrons in the outermost shell of an atom, and they are the ones involved in forming chemical bonds because they have the highest energy and are most easily shared or transferred with other atoms to achieve a stable electron configuration. Inner electrons are typically held more tightly by the nucleus and thus less likely to participate in bonding.

Are quarks alive?

No, quarks are elementary particles that make up protons and neutrons. They are not considered alive because they do not have the characteristics of living organisms, such as metabolism or the ability to reproduce.

Why does an NH2 signal not show on a proton NMR?

Depending on the solvent used to dissolve the sample NH2 may or may not show up on h NMR. If it is dissolved in D2O (heavy water) deturium will exchange with the protons attached to heteoatoms and the signal will "dissapear"

What is the role of a neutron in nucleus?

I assume you know that like charges repel each other.

The protons (+ charge) of the atomic nucleus would fly apart without the extra mass of the neutrons to help hold it together. (It's more than just mass, the strong force is involved too.)

Only hydrogen lacks a neutron, as a single proton holds together quite nicely.

The most appropriate value of the radiation resistance of a quarter wave monopole antenna?

The radiation resistance of a quarter-wave monopole antenna is typically around 36.6 ohms. This value is derived from the antenna's design and dimensions, and it represents the resistance the antenna presents to the flow of radiofrequency electromagnetic waves. It is an important parameter for matching the antenna to the transmission line and maximizing power transfer efficiency.

What is a quarks home called?

The quark, which is a fundamental particle, makes up a composite particle called a hadron. The hadron could be considered the "home" of the quark. There are two types of hadrons, and they are the baryon and the meson. The two best know hadrons are probably protons and neutrons. Protons and neutrons, the "building blocks" of the atomic nucleus, are types of baryons.
Atom

What happens when a atom loses an electron?

When an atom loses an electron, it becomes positively charged and is called a cation. This loss of an electron reduces the number of negatively charged electrons compared to the number of positively charged protons in the nucleus. The atom becomes more reactive as it seeks to gain electrons to achieve a stable electron configuration.

The movement of electrons allows us to see color?

Electrons are responsible for absorbing and emitting light in different wavelengths, which results in the perception of color. When light interacts with objects, electrons within their atoms can be excited to higher energy levels, giving rise to the variety of colors we see. This process of electron movement dictates the color we perceive an object to be.

Is all matter made up of protons?

All types of matter are made of at least one of the following, and are put together different ways by force carriers ( photons, W+ bosons, W- bosons, gravitons) these are the basic particles: leptons and quarks. leptons include 3 different types, one of them being electrons. all three types have an opposite. the electron's opposite is a neutrino. quarks come in 6 different types that are up, down, charmed, strange, top or bottom

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Choose the correct number of protons of F?

Since the atomic number of Florine is 9....

the number of protons do not change!!!!

therefore... number of protons are 9

number of electrons are 10

number of neutrons are 9