N meaning in Space Science ?

Answer:

What is Neutrons mean?

The neutron is a subatomic particle, symbol
n
or
n0
, which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms. Since protons and neutrons behave similarly within the nucleus, and each has a mass of approximately one atomic mass unit, they are both referred to as nucleons. Their properties and interactions are described by nuclear physics.

The chemical properties of an atom are mostly determined by the configuration of electrons that orbit the atom's heavy nucleus. The electron configuration is determined by the charge of the nucleus, which is determined by the number of protons, or atomic number. The number of neutrons is the neutron number. Neutrons do not affect the electron configuration, but the sum of atomic and neutron numbers is the mass of the nucleus.

Atoms of a chemical element that differ only in neutron number are called isotopes. For example, carbon, with atomic number 6, has an abundant isotope carbon-12 with 6 neutrons and a rare isotope carbon-13 with 7 neutrons. Some elements occur in nature with only one stable isotope, such as fluorine. Other elements occur with many stable isotopes, such as tin with ten stable isotopes.

The properties of an atomic nucleus depend on both atomic and neutron numbers. With their positive charge, the protons within the nucleus are repelled by the long-range electromagnetic force, but the much stronger, but short-range, nuclear force binds the nucleons closely together. Neutrons are required for the stability of nuclei, with the exception of the single-proton hydrogen nucleus. Neutrons are produced copiously in nuclear fission and fusion. They are a primary contributor to the nucleosynthesis of chemical elements within stars through fission, fusion, and neutron capture processes.

The neutron is essential to the production of nuclear power. In the decade after the neutron was discovered by James Chadwick in 1932, neutrons were used to induce many different types of nuclear transmutations. With the discovery of nuclear fission in 1938, it was quickly realized that, if a fission event produced neutrons, each of these neutrons might cause further fission events, in a cascade known as a nuclear chain reaction. These events and findings led to the first self-sustaining nuclear reactor (Chicago Pile-1, 1942) and the first nuclear weapon (Trinity, 1945).

Free neutrons, while not directly ionizing atoms, cause ionizing radiation. So they can be a biological hazard, depending on dose. A small natural "neutron background" flux of free neutrons exists on Earth, caused by cosmic ray showers, and by the natural radioactivity of spontaneously fissionable elements in the Earth's crust. Dedicated neutron sources like neutron generators, research reactors and spallation sources produce free neutrons for use in irradiation and in neutron scattering experiments.

reference

Full Form	Category
Nano	Academic & Science
Nereus	Academic & Science
And	Academic & Science
Norms	Academic & Science
Northwood	Academic & Science
Norminated	Business
Nitrogen	Chemistry
Neutron	Chemistry
Neat	Community
Neither	Community
Noun	Community
Newsletter	Community
Novels	Community
Newtons	Computer and Networking
Next	Computer Assembly Language
N Connector	Computer Hardware
Nut	Computing
Newline	Computing
Ninja	Computing
Nation	Country Specific
Napol	Country Specific
Normandy	Country Specific
Node	Electronics
Neutral	Electronics
Negative	Electronics
Nelly	General
Nick	General
Ned	General
Nicolas	General
Nathaniel	General
Nasir	General
Nasrani	General
Noah	General
Nobel prize	General
Knight	General
Nutrition	General
Natural	General
The Norm	General
Nourishment	General
New	General
Nuzlocke	General
Not	General
Now	General
Nonviolent	General
Nonsense	General
Noon	General
Non	General
Naked	General
Noise	Governmental
Nature	Governmental
Noxious	Governmental
Name	Governmental
Narrow	Governmental
Nebraska	Governmental
Nationalistic	Governmental
Normative	Governmental
Number of Search and Rescue Units	Governmental
N?N?ero	International
Nord	International
Número	International
Noir	International
Noob	Internet
Nurse	Jobs
Naturalist	Jobs
Novelist	Jobs
Negotiator	Jobs
Nerd	Jobs
The Number of ....	Maths
Numeric	Maths
None	Maths
Numerical	Maths
The Nth	Maths
Normal	Medical
nocte meaning- at night	Medical
Natrum	Medical
Nerve	Medical
Nucleophilic	Medical
Needle	Medical
Need	Military and Defence
Number of Required Track Spacings	Military and Defence
Number of Search and Rescue Units (srus)	Military and Defence
Nsfnet	Networking
Neutrino	Physics Related
Neutrons	Space Science
North	Space Science
National	Sports