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В други видеа сме говорили

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за това, че с какъв вид елемент работим

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е дефинирано от броя протони

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в атомното ядро.

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Например, всеки атом с тоно един протон

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в ядрото си е, по определение, водород.

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Всеки атом със шест протона в ядрото си е,

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по определение, въглерод.

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Всеки атом със 17 протона в ядрото си е,

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по определение, хлор.

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И тези числа, които заграждам в периодичната таблица на елементите,

12
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са познати като атомен номер,

13
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но това е просто броят протони в ядрото

14
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на един атом от този елемент.

15
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И това определя какъв вид елемент е това.

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Но в това видео ще разровим малко по-надълбоко

17
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и ще осъзнаем, че може да имаш различни версии

18
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от един и същи елемент и тези версии, химично казано,

19
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са познати като изотопи.

20
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Как може да имаш различни версии от един и същи елемент,

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ако броят протони определя какъв е този елемент?

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