The element is in group 4. The relative oxygen density of its higher oxide is 2.5. Define an item.
September 20, 2021 | education
| Let E – an unknown element, and EO2 – its higher oxide (since the element is in the IV-th group).
By condition, the relative density of EO2 for oxygen:
DO2 (EO2) = M (EO2) / M (O2) = 2.5,
M (EO2) / M (O2) = 2.5,
(M (E) + 16 * 2) / (16 * 2) = 2.5,
M (E) = 48 (amu), which corresponds to the element titanium (Ti).
Answer: titanium (Ti).
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