Question

6 the elements in iron oxide are feron and osmium (a) (b) there are 2 fe atoms and 3 o atoms in iron oxide.

Explanation:

Iron Oxide is a compound. The name "Iron Oxide" indicates that the elements in it are Iron (Fe) and Oxygen (O). Osmium is a different element (Os) and not part of Iron Oxide. For the formula of Iron Oxide (e.g., Fe₂O₃), there are 2 Fe atoms and 3 O atoms.

Answer:

(a) Iron, Oxygen
(b) 2, 3