Back to Course Grade 7 Chemistry - Unit 5: Periodic classifications of the elements 0% Complete 0/0 Steps 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 Lesson 2 of 4 In Progress ← Previous Modern periodic classification of the elements | ዘመናዊ የንጥረ-ነገሮች ምደባ