Предмет: Химия, автор: sashaa001

Каким химическим элементам соответсвуют данные электронные схемы: а) 2,8,2; б) 2,8,4; в) 2,1; г) 2,8,8,2; д) 2,8,8.
Укажите среди них металлы.

Ответы

Автор ответа: alenaseal
2
а) Mg (магний) - 2+8+2=12
б) Si (кремний) - 2+8+4=14
в) Li (литий) - 2+1=3 
г) Ca (кальций) - 2+8+8+2=20 
д) Ar (аргон) - 2+8+8=18 
металлы: а), в), г)
sashaa001: огромное спасибо!!!!:))
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