izotopi

izotopi

Two or more varieties of the same chemical element. Isotopes have different masses because they have different numbers of neutrons (for example ¹⁸O and ¹⁶O), thus they have different physical and chemical properties. Unstable isotopes undergo radioactive decay.

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Settore/Dominio: Astronomia
Categoria: Planetologia
Company: PSRD
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organizam

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kiseonik

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difuzija

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The random movement (spreading) of molecules from regions of highest concentrations to regions of lowest concentrations.

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sonjap

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Sostenitori

Settore/Dominio: Animali Categoria: Serpenti

kobra

A highly venomous snake from the elapidae family native to Asia and Africa. When alarmed, a cobra raises its head and expands the skin of the neck to ...