Sodium, iron, oxygen, calcium
find odd one out
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Answer:
Oxygen
Reason:
Oxygen is non-metal while Sodium, Iron and Calcium are metals.
More to know:
- Oxygen is an odourless, colourless and tasteless gaseous element.
- Metals like Sodium, Iron and Calcium basic oxides.
- Non metals like Oxygen form acidic oxides.
- Metals form cations.
- Non-metals form anions.
- Metals form ionic compounds while non-metals form ionic and covalent compounds both.
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