-
Geophysics (IUGG)
provides three reference values: the mean
radius (R1) of
three radii measured at two
equator points and a pole; the
authalic radius,
which is...
- In
classical geometry, a
radius (pl.:
radii or radiuses) of a
circle or
sphere is any of the line
segments from its
center to its perimeter, and in more...
-
spheres with
radii such that the sum of
ionic radii of the
cation and
anion gives the
distance between the ions in a
crystal lattice.
Ionic radii are typically...
-
state and context.
Atomic radii vary in a
predictable and
explicable manner across the
periodic table. For instance, the
radii generally decrease rightward...
- molecule). The van der
Waals volume may be
calculated if the van der
Waals radii (and, for molecules, the inter-atomic distances, and angles) are known....
- Typically,
because of the
difficulty to
isolate atoms in
order to
measure their radii separately,
atomic radius is
measured in a
chemically bonded state; however...
- (2008), was
adopted to help
astronomers avoid confusion when
quoting stellar radii in
units of the Sun's radius, even when ****ure
observations will likely...
-
actinide contraction is the greater-than-expected
decrease in
atomic radii and
ionic radii of the
elements in the
actinide series, from left to right. It is...
- of the two
covalent radii should equal the
covalent bond
length between two atoms, R(AB) = r(A) + r(B). Moreover,
different radii can be
introduced for...
- In mechanics, the
virial theorem provides a
general equation that
relates the
average over time of the
total kinetic energy of a
stable system of discrete...
