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Glossary

allotrope Some facets exist in several various structural forms, referred to as allotropes. Each allotrop has different physical properties.

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For much more information on the Visual aspects image check out the Uses and also properties ar below.


Discovery day approx 1500
discovered by -
beginning of the name The surname come from the German "Bisemutum" a corruption that "Weisse Masse" definition white mass.
Allotropes

Glossary

GroupA vertical tower in the routine table. Members the a group typically have comparable properties and also electron configuration in their external shell.

PeriodA horizontal heat in the regular table. The atomic variety of each element increases by one, reading from left to right.

BlockElements room organised right into blocks through the orbital kind in which the external electrons space found. This blocks are called for the properties spectra they produce: spicy (s), principal (p), diffuse (d), and an essential (f).

Atomic numberThe number of protons in an atom.

Electron configurationThe arrangements of electrons over the critical (closed shell) noble gas.

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

Boiling point The temperature in ~ which the liquid gas phase adjust occurs.

SublimationThe shift of a substance straight from the solid come the gas phase without passing with a liquid phase.

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

Relative atomic massThe mass of one atom relative to the of carbon-12. This is approximately the sum of the variety of protons and also neutrons in the nucleus. Where an ext than one isotope exists, the value provided is the abundance weight average.

IsotopesAtoms that the same aspect with various numbers of neutrons.

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CAS numberThe chemical Abstracts company registry number is a distinctive identifier that a specific chemical, draft to stop confusion developing from different languages and naming systems.