Предмет: Химия, автор: zak123poi

13.Число нейтронів в атомі Калію: а) 19 б) 39 в) 58 г) 20.​

Ответы

Автор ответа: lytvynbi
0

Ответ:

а) 19

Объяснение:

Тогошо число нейтронів в атомі відповідає порядковому номеру

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срочноооо!!!!!
в течерие часа!!!@
дам 20 баллов!!!!​
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