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periodic Table

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

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For an ext information on the Visual elements image view the Uses and also properties section below.

Discovery date ancient
discovered by -
beginning of the name The surname is acquired from the Old English surname "coper" in turn acquired from the Latin "Cyprium aes", an interpretation a metal from Cyprus


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

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

BlockElements are organised right into blocks by the orbital form in i beg your pardon the outer electrons space found. This blocks are called for the properties spectra lock produce: sharp (s), principal (p), diffuse (d), and an essential (f).

Atomic numberThe number of protons in one atom.

Electron configurationThe species of electrons over the last (closed shell) noble gas.

Melting pointThe temperature in ~ which the solid-fluid phase adjust occurs.

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

SublimationThe change of a substance directly from the solid come the gas step without passing with a fluid phase.

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

Relative atom massThe massive of one atom loved one to that of carbon-12. This is about the sum of the number of protons and also neutrons in the nucleus. Where more than one isotope exists, the value offered is the abundance weighted average.

IsotopesAtoms that the same element with different numbers the neutrons.

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CAS numberThe chemistry Abstracts business registry number is a unique identifier that a particular chemical, draft to stop confusion developing from different languages and naming systems.