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allotrope Some aspects exist in several different structural forms, called allotropes. Each allotrope has various physical properties.

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For much more information on the Visual facets image see the Uses and properties section below.

Discovery day 1669
discovered by Hennig Brandt
beginning of the name The surname is acquired from the Greek "phosphoros", meaning bringer of light.
Allotropes White P, Red P, black color P, P2


GroupA vertical column in the periodic table. Members the a group generally have comparable properties and electron configurations in their external shell.

PeriodA horizontal heat in the periodic table. The atomic variety of each facet increases through one, analysis from left come right.

BlockElements are organised into blocks through the orbital type in i m sorry the outer electrons space found. This blocks are called for the characteristics spectra castle produce: spicy (s), primary (p), diffuse (d), and fundamental (f).

Atomic numberThe number of protons in one atom.

Electron configurationThe kinds of electrons above the last (closed shell) noble gas.

Melting pointThe temperature at which the solid–liquid phase adjust occurs.

Boiling point The temperature at which the liquid gas phase change occurs.

SublimationThe transition of a substance straight from the solid come the gas phase without passing v a liquid phase.

Density (g cm−3)Density is the mass of a substance that would fill 1 cm3 in ~ room temperature.

Relative atom massThe fixed of one atom loved one to the of carbon-12. This is roughly the sum of the variety of protons and also neutrons in the nucleus. Where an ext than one isotope exists, the value offered is the abundance weighted average.

IsotopesAtoms the the same facet with various numbers of neutrons.

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CAS numberThe chemistry Abstracts company registry number is a distinct identifier the a certain chemical, design to protect against confusion arising from various languages and naming systems.