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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
Are protons and electrons grouped together in an atom?
NO, protons and neutrons are in the centre of an atom and the electrons are spinning round on the outside of an atom. protons have a positive charge and electrons have a negative charge, this why they cannot be together. However, neutrons have no charge, that is why they are combined with the protons.
Are elections bigger or smaller then neutrons and protons?
Elections are much smaller than neutrons and protons. Neutrons and protons are subatomic particles found in the nucleus of an atom, while electrons orbit the nucleus in electron clouds. The electron is about 1/1836 times smaller in mass compared to a neutron or a proton.
What is weakest gravity the strong force the weak force or the electromagnetic force?
Gravity is the weakest force. In order from strongest to weakest is the strong force, the electromagnetic force, the weak force, and gravity. However, this is relative to distance - one could consider that gravity is the strongest force because its effect can be felt over enormous distances, even astronomical distances.
Is the mass of a proton much greater than the mass of electron?
1836 times the mass of an electron
So how do you calculate '1836 times the mass of a proton' ?
Mass of proton = 1.673 x 10-27 or (10 to the power of negative 27)
Mass of electron = 9.109 x 10-31 or (10 to the power of negative 31)
Simply by dividing the largest mass (of protons) by the smallest mass (electrons):
(1.67262 . 10-27) / (9.10939 . 10-31) = [1.67262 /9.10939] . [10(-27)-(-31)] =
0.1836 . 10+4 = 1836
How many excess electrons are on the negative cork?
q = Ne
N = q/e
Where:
q = charge that can move
N = number of electrons gained or lost
e = elementary charge (1.602x10^-19)
What common ion has zero electrons?
A hydrogen ion, often called a proton, because that's all it is - one proton in the nucleus and no electrons. Tiny, but powerful!
What subatomic particle determines the name of an atom?
The number of protons in an atom's nucleus determines its identity and is used to identify the element.
What is the electron configuration of Ag ion?
Electron configurations:
Ag metal is: [Kr] 4d10, 5s1 ,
so Ag+ ion is in shorthand: [Kr] 4d10, 5s0 or [Kr] 4d10
and in full notaion:
[1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p6] 4d10
What is the protons neutrons and electrons of helium?
The number of protons in an element is always the same as the atomic number, which is 2 in the case of helium. (The atomic number is assigned based on the number of protons in an element.) In a neutral atom (one with no charge), the number of electrons equals the number of protons, so it will be 2 electrons also. However, the number of neutrons will vary depending on the isotope (atoms of the same element with different numbers of neutrons). There are two stable isotopes of Helium, 3He and 4He, having 1 neutron and 2 neutrons respectively. Most helium is helium-4, and helium-3 is found as only about one atom in a million.
See link below for more information on Helium, as well as the related question below that will show you how to find the number of protons, neutrons, and electrons in any atom.
How many electrons are there in 3 shells of O?
There are 8 electrons. 2 in the 1st shell and 6 in the 2nd.
How many dots are shown in the electron dot diagram of Fe2O3?
In the electron dot diagram of Fe2O3, there would be 26 dots shown, representing the total number of valence electrons in the compound. Each dot represents a valence electron from either iron or oxygen.
What is the size of an atom versus an electron?
An atom is much larger in size compared to an electron. An atom consists of a nucleus made up of protons and neutrons surrounded by orbiting electrons. Electrons are subatomic particles that are about 1/1800 the size of a proton or neutron.
It is called shielding or screening effect. Inner electrons shield the valence electrons from the positive charge of the nucleus, reducing the attractive force between them.
What is valence electron configuration for the arsenic atom?
Short answer: [Ar] 3d10 4s2 4p3
OR
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3
Is glucose an subatomic particle?
No. A gluon, however, can be thought of as one. It's the particle that holds quarks together inside of hadrons (particles composed of three quarks) and mesons (particles composed of a quark-antiquark pair). The gluon is called a gauge boson- a fundamental particle that mediates one of the fundamental forces. Glucose is a type of sugar.
Are neurons made by combination of protons and mesons?
No, neurons are not made by a combination of protons and mesons. Neurons are specialized cells in the nervous system that transmit information using electrical and chemical signals. They are made up of components such as axons, dendrites, and a cell body, but protons and mesons do not play a role in their structure or function.
What subatomic particle is not part of the nucleus?
Atoms are the building blocks of matter. Atoms are made up of electron, neutron and proton particles. Electrons are negatively charged, neutrons are neutral and protons have a positive charge.
What are intervening electrons?
The electrons which are present in the inner orbits relative to an electron in the outer orbit and hence they cause the shielding effect for the outer electron. The word intervening literally means to come between so as to interrupt.
Yes, a particle accelerator is used to accelerate charged particles to high speeds, giving them sufficient kinetic energy to penetrate a nucleus. When the particles collide with the nucleus, they can break it apart or induce nuclear reactions.
Which is regarded as the universal particle proton or electron?
yes,an electron is a univerrsal constituent of atom because an atom is mainly consist of neutron, proton and electron. proton and electron are in the nucleus where as electrons are around nucleus.
How many neutrons are in oxygen-19?
Potassium has several known isotopes, some of which are stable or at least very long lived. 19K is not one of hem. 32K (13 neutrons) to 55K (36 neutrons) have been identified. The stable ones are 39K and 41K. Should an isotope 19K be created, it would have no neutrons. It would decay by electron capture (most likely) to something like fluorine. With a great number of gamma photons emitted as well.
What is the difference in mass between protons and neutrons generally regarded as?
Protons are generally considered to have a slightly lower mass than neutrons. The mass of a proton is approximately 1.007 atomic mass units (amu), while the mass of a neutron is approximately 1.009 amu.
What is the chemical composition of an electron?
Electrons are fundamental particles; they're not made of simpler pieces. In chemical equations where it's necessary to explicitly specify the movement of electrons, the notation e- is usually used (half-cell reactions, for example).
How are subatomic particles in an atom?
Example:
if an atom has 20 protons, there should be 20 electrons to make it neutral(balanced).
neutrons have no charge so they are automatically neutral.
hope that helps =)
How many unpaired electrons are in tungsten?
The equation to find this out is 2 n^2 where n is the shell number. Now Tungsten is element 74 and we know that the first ring has 2, the secound ring has 8 the next ring, accourding to the equation is 18, the next has 32, the next has 50. Now adding this up we get a total of 110. Now subtracting 74 from 110 we get 36. Now sence each electron has to have a pair, we know that half of the outter ring is the ammount we get till there is electron pairs. so subtracting 36 from 50, getting us 24 we know that there is 24 upaired elctrons.
