сілтілі металл (топтық элемент)

сілтілі металл (топтық элемент)

Metal in the first column of the periodic table

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Ordklasse: noun
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Fagområde/Domene Astronomy
Category: General astronomy
Company: Caltech
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Having a pH greater than 7.

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Trojan asteroid (60° ahead of Jupiter. It was the first Trojan to be discovered.

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The number of protons in an atom's nucleus. This determines the type of element.

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the light produced by excited atoms and ions in the upper atmosphere of a planet

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