What is the formula of the compound formed between germanium and oxygen?
Ge (group 14, valence 4) forms GeO₂ with oxygen (valence 2), a stable covalent oxide, unlike GeO, Ge₂O, or GeO₄.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Genesis of Periodic Classification - Dobereiner Newlands Mendeleev