Предмет: Химия, автор: artem1105kon

Вкажіть вірний запис відносної атомної маси Алюмінію а) Ar(AI)=13;.б) Ar(Al)=26; Ar(Al)=27 A(Al)=26,9 допоможіть

Ответы

Автор ответа: dminer

Відповідь:

Ar(Al)=27

Пояснення:

відносна атомна маса 26,9815 = 27(після скорочення)

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