Using Scroll -Wheel / 5-Way Navigation
Scroll - Wheel / 5-Way Navigation
Navigate through the Periodic Table using the Scroll wheel or 5-way navigational button.
Scroll wheel: Scroll Up or Down to navigate to the next element in the group. Push the Scroll button to display the element data that is currently highlighted.
5-Way Navigation: Press Left, Right, Up or Down to the navigate to the element you are interested. Press Enter to display the element data that is currently highlighted.
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Atomic Weight
The average mass of an atom of an element, usually expressed relative to the
mass of
carbon 12, which is assigned 12 atomic mass units.
Units: g / mol.
Density
The mass per unit volume of a substance under specified conditions of pressure
and
temperature.
Units: g / cm3
Oxidation States
Oxidation state indicates the total number of electrons which have been removed
from an
element (a positive oxidation state) or added to an element (a negative
oxidation state).
State
The condition of a physical system with regard to phase, form, composition, or
structure.Solid, Liquid, Gas are the primary states of matter.
Melting Point
The temperature at which a solid becomes a liquid at standard atmospheric
pressure.
Units: ( K )
The temperature at which a liquid boils at a fixed pressure, especially under standard atmospheric conditions.
Units: ( K )
Heat of Vaporization
The amount of heat required to convert a unit mass of a liquid at its boiling
point into
vapor without an increase in temperature.
Units: kJ / mol.
Heat of Fusion
The amount of heat required to convert a unit mass of a solid at its melting
point into a
liquid without an increase in temperature.
Units: kJ / mol.
Electron Configuration
An electronic configuration of an atom is a particular distribution of electrons among available subshells.
Specific Heat
The amount of heat, measured in calories, required to raise the temperature of
one gram of
a substance by one Celsius degree.
Units: J / gK.
Group / Family
In the periodic table of elements, each of the vertical column of elements is
called a
group. There are 18 groups in the periodic table. Elements belonging to a
particular group
or Family have similar properties.
Crystal Structure
A homogenous solid formed by a repeating, three-dimensional pattern of atoms,
ions, or
molecules and having fixed distances between constituent parts.
Atomic Volume
The ratio of the atomic and molecular weights divided respectively by the
specific gravity
of the substance in question.
Units: cm3 / mol.
Atomic Radius
Atomic radius is the distance from the atomic nucleus to the outmost stable
electron
orbital in a atom that is at equilibrium and is measured in Angstroms.
Atomic radii are called covalent radii when referring to non-metallic elements and metallic radii when referring to metals. Technically, the atomic radius is one half of the equilibrium inter nuclear distance between two adjacent atoms (which may either be bonded covalently or be present in a closely packed crystal lattice) of an element.
Units: Angstrom (oA)
Covalent Radius
A covalent radius is one-half the distance between nuclei of two of the same
atoms that
are bonded to each other. Covalent radii for elements whose atoms cannot bond to
each
another can be estimated by combining radii of those that do with the distances
between
unlike atoms in various molecules. A metallic radius is one-half of the closest
inter-nuclear distance in a metallic crystal.
Units: Angstrom (oA)
Thermal Conductivity
The quantity of heat that passes in unit time through unit area of a plate whose
thickness
is unity, when its opposite faces differ in temperature by one degree.
Units: W / cm.K.
Electrical Conductivity
Electrical conductivity is a measure of how well a material
accommodates the transport of electric charge.
Units: x 106 / cm Ω
Ionization Potential
The energy needed to remove valence electrons from an atom is called the ionization energy,
or ionization potential.
Units: eV
Electronegativity
Electronegativity is a measure of the tendency of an atom to attract a
bonding pair of electrons. Fluorine (the most electronegative element) is assigned a value of 4.0.
Oxide
Any element (but especially a
metal) that has formed a binary compound with oxygen.
Redox Potential
The redox potential, is the energy gained by transferring 1 mole of
electrons from an oxidant to Hydrogen. It is measured in volts relative to a
hydrogen electrode which is at zero.
Units: Volts (V)