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Particle Physics

Parent Category: Cosmology
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.
The neutron has about the same mass as the proton, each hasa mass a tiny amount greater than 1 AMU (atomic mass unit). Theneutron is the smallest bit more massive. The electron has a mass of just a bit over 5/10,000ths of an AMU.Extremely less massive in comparison, isn't it!
Protons and neutrons are called hadrons. A hadron contains threequarks. Quarks come in 6 flavors (types). These types are up, down,top, bottom, strange, and charmed. (The names are completelyarbitrary.) A proton contains two up quarks and one down quarkwhile a neutron contains one up quark and two...
Also, by electron charge, are you referring to the opposite ofelementary charge? The systematic name is monohydrogencarbonate(-1), this tells you the formal charge, as would simplyadding the charges using the chemical formula of bicarbonate.[HCO3]-
Electrons are a type of fundamental particle known as a Lepton.Protons how ever are made up of quarks. A proton has a quarkstructure of up, up, down (UUD). The up quark has a charge of +2/3and the down has -1/3 which gives the proton its overall positivecharge. The up and down quark both have a...
yes we have various isotopes on the difference in the number ofneutrons
yes, cathode rays are streams of electrons
Out of protons, neutrons, and electrons, electrons are the smallest.
it depends on the element and isotope
Quarks are considered to be fundamental particles, and as such they do not really have a classical "size". Their masses can be compared, however, and they are not the same for all types of quarks.
Beta particles or radiation is an electron emitted at high speed or energy from some types of unstable elements in a process known as beta-decay. Beta radiation is not healthy for living things. It is usually stopped by a few millimeters of metal, wood, or plastic. Direct exposure to the skin can...
Light causing electrons to be released from the surface of a metal.
The number of protons in an atom is its atomic number.
Three different subatomic particles make up an atom. They are the proton, neutron and electron. -Suzie
A proton has a charge of +1 and an electron has a charge of -1.
Protons,Neutrons, and Electrons. Which are all inside the nucleusof the atom.
It really depends in which atom you're talking about. because ahydrogen atom which it's atomic number is 1 has 1 electron, 1neutron, and 1 proton; the helium atom, has an atomic number of 2,the nitrogen atom of 7, and Unumquadium of 114, meaning thatUnumquadium has 342 subatomic particles( a...
The Wikipedia lists an estimate of 10 to the power 80 hydrogenatoms for the observable Universe. The total number of particleswould be somewhere in that order, depending on what "particles" youare thinking of.
elecron can move from atom to atom... yes
Yes, but an electron configuration could be that of an ion. The identification of an element depends on the number of protons in its nucleus, so only when the species is also neutral can the electron configuration be used to identify it. Examples 1s 2 2s 2 2p 6 is the electron configuration of...
The nucleus which includes the protons and neutrons, and theelectron cloud which contains the electrons. If you want to getinto true quantum mechanics, then there are the quarks, theleptons, the bosons, gluons, etc.
This process of decaying is called a beta decay. The produced proton remains in the nucleus and the electron is released from the atom.
TWO types of subatomic particles?? Gosh, the basics are the electrons, neutrons, and protons. Then you add muons, gluons, 6 quarks and so on, and you come up with many particles. And that's just for matter. If you consider anti-matter, you have positrons, anti-protons, anti neutrons, etc etc etc.
Tritium, a radioactive isotope of hydrogen.
Proton,electron and neutron.
There are about 61 neutrons in silver. It actually has lesselectrons and protons than neutrons, since it only has 47 of them.
Cesium has 55 electrons.
The electrons come from water. In the light dependent stage water is split into hydrogen ions (H + ), electrons and oxygen. The electrons are passed on to chlorophyll, the H + ions combine with NADP to form NADPH and the oxygen is released.
The number of protons in a nucleus depends on the element. Hydrogen has 1 proton, helium has 2 protons, and lithium has 3. All elements have different numbers of protons in the nucleus. If you look on a periodic table, each element has an atomic number. That number is the number of protons there is...
No. They have no charge.
A neutron. They're about the same size
I think its 14 total. (7 orbitals)
usually it is the second to third layer of electrons. it depends on what atom ur talking about, some atoms (like magnesium) have 3 electron levels; when some atoms (like gold) may have over 7 levels of electrons. it sometimes has to do with the atomic number
these element has 2 electron in the valence shell and is magnesiumof group 2
Your question is not clear. A current is generated when a group ofelectrons flow through a conductor, and this happens when there isa potential difference between the 2 ends of the conductor. If you want to know how can we start the flow of electrons it is bycreating a potential difference in...
It has to do with entropy. The law of entropy states that the universe tends toward having the lowest possible energy at every point. Two oppositely charged particles' magnetic fields cancel out, so, to follow this tendency, they attract each other to have more of their fields overlapping, and so,...
That depends on the element. Any such atom with more than four protons will gain electrons tobecome electrically neutral. If that atoms has four protons (beryllium) then it will be able toform a stable ion with two electrons. If it is left with threeelectrons it will either gain an electron to form...
Hydrogen peroxide is H2O2, so each hydrogen has 1 proton, and eachoxygen has 8 protons: (1 x 2) + (8 x 2) = 18 protons in eachmolecule.
It depends on how much energy it has
Every "neutral" (uncharged, non-ionized) atom has the same numberof electrons as protons, i.e. at least one in the case of hydrogen.Only ionized atoms can have no electrons, as positive ions.
Mass Number Protons and neutrons are collectively called called nucleons. The number of nucleons (protons plus neutrons) in the nucleus of an atom is called the mass number . For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually...
Quarks are fundamental particles, and three of them make up the particle group we call the baryons . The two common baryons we encounter are the proton and the neutron , which are composite particles made of of three quarks each. The proton is composed of two up quarks and a down quark, and...
Yes. According to Einstein, the mass of an electron can be converted into energy, which will then dissipate. The famous E=mc 2.
The mass of a proton is 1.672 621777(74)x 10 to the power of -27, in grams.
Caesium's chemical symbol is Cs
The chemical nature of the substance. The rare earths all have a similar 'outer shell', and differ only in their 'inner shells', hence the similarity of many of their properties.
Elements are defined by the number of protons in the element. Atoms with 4 protons are always Beryllium. 5 neutrons means that the atom has a mass number of 9. So the nuclide is Beryllium-9
A Gluon - the force-carrying particle of the strong nuclear force.
The basic idea is that elementary particles are not point like, like the Standard Model assumes, but are instead tiny strands of energy. If you want to know more about String Theory there is a very good documentary which you can look for free on the internet. It should be understandable to the...
J.J Thompson discovered the electron during his famous cathode raytube experiment in 1897, but it was actually Niels Bohr whodiscovered the electron shell (by accident), performing an x-rayexperiment in 1909. .
250,000 times. This is 125 times the magnifying power of the light microscopes.
That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron.
Proton: Charge= +1.60 x 10 -19 C; Relative Charge=+1;Mass: 1.672 x 10 -24 g; Relative mass= 1 amu Electron: Charge= -1.60 x 10 -19 C; Relative Charge=-1;Mass: 9.05 x 10 -28 g; Relative mass= amu ~(1/1840 amu) Neutron: Charge= neutral ; Relative Charge=0; Mass: 1.674 x10 -24 g; Relative mass=...
A neutron star is composed primarily of neutrons, according to theory. This extremely dense star is formed when a star explodes in what is called a (Type II, Type Ib, or Type Ic) supernova.. A link to the Wikipedia article on the neutron star is provided.
C-14 The number 14 is the total number of protons and neutrons. Carbon is #6 in the periodic table because it has 6 protons . 14 - 6 = 8 neutrons. C-14 has 6 protons and 8 neutrons
Protons all have positive charge, so they repel each other. It takes work to push two protons closer together, so you're putting energy into them (potential energy increases). If you let go, the potential energy is released when the protons fly apart; it becomes kinetic energy.
No, it is never to be found in the nucleus, it is in electron orbits or 'shells', each with its own the energy level.
The atomic number of an element tells us that atom's number of protons. If the atom is neutral, its number of protons is going to equal its number of electrons. Thus, we need only find the element with the atomic number of 39, which is yttrium.
Helium has two electrons in the first shell.
Obvious She met me on a Monday and my heart stood still The dueteron-on the dueteron! Somebody told me that her name was Phil The dueteron-on the Dueteron Must be 2 or 2 to the nth degree?
It really depends on which particle you're speaking about because aproton has a different mass regarding the electron. and the protonand the neutron have bigger masses than photons, neutrinos,electrons, etc.
Depends how close the neutrino is to the black hole.
protons and electrons are attracted to each other and act as magnets when close but if they touch it is cattastrofic for the atom. neutrons are neutral and sit in the middle of the protons and electrons to stop their electric charges from touching each other. electrons have no electrical charge.
Since the positron is the antiparticle of the electron, it followsthat the electron is the antiparticle of the positron.
Any of them. There is no subatomic particle which is restricted to the nucleus. However, many of them are exceedingly rare.
The Higgs boson was first theorized in the 60's, and now, at CERN, the LHC (Large Hadron Collider) has just reopened after some technical difficulties. This machine will collide particles up to 3.5 Tev. The hope is that in the debris, a Higgs boson will materialize, probably for a very, very short...
there are a maximum of 18 electrons on the level 3 or the third shell
-Down and anti-Down quark, -Up and anti-Up quark or -Strange and anti-Strange quark
Electron; Negative. Neutron; No charge, neutral. Proton; Positive.
Matter can be loosely defined as the substance that every structure contains. As physics suggests, every substance contains very minute particles called atoms which then contains non-fundamental particles such as protons and neutrons and fundamental particles known as electrons. Within protons and...
The positron is the antiparticle of the electron. So, it is positive. Antiparticles are always the opposite of their matter particle. They are of the same mass and of opposite charge. When a particle and antiparticle meet, they annihalate each other in a blast of energy in the form of photons, a...
There are several, but the important one is the neutron.
The particles that, when they touch certain cells in our eyes, are interpreted as light are called Photons .
Yes. The magnitude of electrical charge on a proton is the same as the magnitude of electrical charge on an electron. The charge on a proton is positive and the charge on an electron is neutral, so that a pair containing one of each of them has no net electrical charge.
A whole raft of people, and it's probably not quite finished yet. The first few particles were discovered by individuals, but recent discoveries are almost all team efforts.
Nothing. The electrons are not confined in the nucleus, they orbit around it at a considerable distance relative to the size of the nucleus.