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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Branża/Dziedzina: Astronomia
Kategoria: Planetologia
Company: PSRD
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Aleksandar Dimitrijević

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Српски тенисер и тренутно светски број 1, пошто је поразио Надала на Вимблдону 3. јула 2011. године, освојивши трећу Гренд Слем титулу. Рођен 1987. ...