✋Introduction
Chemical formulae
In this lesson: I can use chemical symbols to write down chemical formulae for elements and compounds. The symbols for each element (each type of atom) a substance contains, appear in its chemical formula. Numbers (subscripts) next to chemical symbols in a formula show the numbers of each type of atom in a compound.
Lesson outcome
Waxaan isticmaali karaa astaamaha kiimikada si aan u qoro qaaciidooyinka kiimikada ee curiyeyaasha iyo isku-dhisyada.