Search results for "Atomic radius" - New World Encyclopedia

with studying and understanding the atomic nucleus, including its composition ... point of an atom." The modern atomic meaning was proposed by Ernest ...

, and many thousands more to enrich it to atomic bomb-grade (around 90 percent ... The acceleration can be calculated as the product of the radius and ...

constant called the classical electron radius, with a value of 2.8179 × 10−15 ... existed in quantized orbits around the atomic nucleus. Soon after this ...

prove that all the positive charge in the atomic nucleus was contained in ... alpha particles were used as a probe into atomic structure by being allowed ...

and 2.1 solar masses, with a corresponding radius between 10 and 20 km—about ... only a tiny fraction of its parent's radius (and therefore its moment ...

a dense form of matter which consists of atomic nuclei immersed in a gas ... VIII. NGC 2516: a test for the mass-radius and initial-final mass relations ...

may be bound by the nuclear force into atomic nuclei. The most common isotope ... the other composite particle found in atomic nuclei, there is one U and ...

! colspan=20 | → Atomic radius decreases → Ionization energy increases ... proposed a separate method, based on atomic size and charge, to calculate ...

Europium (chemical symbol Eu, atomic number 63) is the most reactive of the rare earth elements. The term "rare earth elements" (or ...

to the way they are set off and the radius of effect. ==Delivery== ... injury and/or death within the blast radius through three distinct yet ...

Strontium (chemical symbol Sr, atomic number 38) is a soft, silvery ... 5, between rubidium and yttrium. As its atomic radius is similar to that of ...

Gallium (chemical symbol Ga, atomic number 31) is a rare, soft, silvery ... small quantities in the core of the first atomic bomb to help stabilize the ...

a professorship in Rome (the first for atomic physics in Italy, created ... While people expected elements with higher atomic number to form from neutron ...

==Table of atomic and nuclear constants== {| border="1" align ... * Atomic units * Planck units ==References== * Baez, John. [http://math ...

Radium (chemical symbol Ra, atomic number 88) is an extremely radioactive ... Radium (from the Latin word radius, meaning "ray") was discovered ...

a star's mass and its luminosity and radius. That is, for a given mass ... as a black body, the luminosity L and radius R can be related to the effective ...

increase at a rate of 10dB/decade for wire radius much greater than skin depth. ... by band electrons or holes, but by full atomic species (ions) traveling ...

It indicates that deuterium, with an atomic nucleus composed of two ... as protium. Deuterium has a mass of 2.014 atomic mass units (u), compared ...

of Hiroshima: An Introduction to the Atomic Bomb Tragedy (Hiroshima Peace ... remain the first and last hostile use of atomic weapons. During the Cold ...

is that they are all roughly the same radius, more or less the radius ... Density is a clear giveaway. Brown dwarfs are all about the same radius; ...

typically between 0.008 and 0.02 times the radius of the Sun; ... this is comparable to the Earth's radius of approximately 0.009 ...

large. To understand the structure of this atomic nucleus, scientists have ... continue to spiral outward to a larger radius but, as explained above, ...

across the transition metals of a period, the atomic radius generally tends to decrease, and the first ionization energy (energy required to remove ...

Silicon (chemical element symbol Si, atomic number 14) is a member ... generally unstable, owing to the larger atomic radius of silicon and the correspondingly ...

zone," a ring-shaped region with a radius of approximately 2500 kilometers ... tends to be dominated by emissions from atomic oxygen, resulting in a greenish ...

the slowing from time dilation, such as atomic clocks onboard a Space Shuttle ... dimension. In particular, a sphere of radius r has area of 4πr2. More ...

|solar radius: |\begin{smallmatrix}R_\odot = 6.960 \times 10^{8}\end{smallmatrix} ... Large lengths, such as the radius of a giant star or the semi-major ...

arranged around a central coin of the same radius so that each coin makes contact ... *The atomic number of carbon *The number of carbon atoms and carbon ...

keeps the negative electrons and positive atomic nuclei in close proximity ... chart considers only conventional atomic plasmas and not exotic phenomena ...

to be much lower, perhaps only 1 solar radius above the photosphere, suggesting ... that the lunar regolith is enriched in atomic nuclei deposited from the ...

O, O2, and possibly O3 (ozone), and some atomic hydrogen. ... separation arcsec) - 24.9 (jup angular radius arcsec) = 631 arcsec = 10 arcmin ...

Springs). These updates synchronize the atomic clocks on board the satellites ... are equipped with extremely accurate atomic clocks, and the receiver ...

which allows an estimate of the average atomic number in a voxel, as well ... where single slices at the Tibia or the Radius are measured resulting ...

system, which is located nearly a solar radius away from the center of the ... structure, described below. The Sun's radius is measured from its center ...

2):56-61. Drift time is a measure of the radius relative to the charge of ... * Atomic mass * Mass spectrometer * Molecular mass * Molecule ...

stability, etc. vary widely depending on radius of the torus and radius of ... Defects can occur in the form of atomic vacancies. High levels of ...

effect has been measured by transporting atomic clocks to altitudes of up ... Such systems rely on two sets of atomic clocks: clocks aboard satellites ...

discovered that streams of high-energy atomic particles are ejected from ... ! Orbital radius (km) ! Orbital period (days) |- style="background: ...

debris avoidance, anchor system, surviving atomic oxygen, avoiding lightning ... ratio between the cable's radius at geosynchronous altitude ...

universe of constant mass and growing radius accounting for the radial velocity of extragalactic nebulae] Monthly Notices of the Royal Astronomical ...