Sodium is considered to be a transitional metal
Answer:
D. Malleability
Explanation:
Gold is made up of the element Au and it is a metal.
Pyrite is iron sulfide and it is a non-metal.
- They have very similar appearance to such an extent that pyrite is widely called the fool's gold.
- To distinguish between the two, we simply explore their metallic properties.
- Gold is malleable. Pyrite is not. It will crumble under pressure.
The answer is: [D]: a reactant.
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The answer would be Rocks, metals, hydrogen compounds, hydrogen and helium, all in gaseous form.
