Grade 7 Chemistry – Unit 5: Periodic classifications of the elements
Periodic classification of the elements | ወቅታዊ የንጥረ ነገሮች ምደባ
Modern periodic classification of the elements | ዘመናዊ የንጥረ-ነገሮች ምደባ
Electronic configuration and arrangement of elements | የኤሌክትሮኒክ ውቅር እና የንጥረ ነገሮች ድልደላ
Some periodic properties in the periodic table | ፒሪዮዲክ ቴብል ውስጥ የሚታዩ የንጥረ-ነገርዎች ፀባይዎች
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Electronic configuration and arrangement of elements | የኤሌክትሮኒክ ውቅር እና የንጥረ ነገሮች ድልደላ
