Question

An Non-Metal which do not present in solid state
An metal which is not in solid state
Why Gold (Au) is least reactive metal?
Why Aluminium is most reactive?
How do metals and non metals react?

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Answer 1

Answer:

Carbon is a solid non-metal element. Pure carbon can exist in very different forms. The most common two are diamond and graphite.

The alkali metals are highly electropositive, these are the only elements which form stable solid bicarbonates.

Since the 6s orbital with one electron is contracted, this electron is more tightly bound to the nucleus and less available for bonding with other atoms. The 4f and 5d orbitals expand, but can't be involved in bond formation since they are completely filled. This is why gold is relatively unreactive.

Aluminium is soft, lightweight and ductile with excellent thermal and electrical conductivity. It is highly reactive, though the metal is protected by a surface layer of inert transparent oxide (Al2O3) that forms rapidly in air, providing excellent corrosion resistance.

Chemical bonds involve electrons from the reacting atoms. Compounds formed from metals and non-metalsconsist of ions. ... metal atoms lose electrons to form positively charged ions. non-metal atoms gain electrons to form negatively charged ions.

Step-by-step explanation:

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Answer 2

Answer:

1) carbon

2) lithium

3) The 4f and 5d orbitals expand, but can't be involved in bond formation since they are completely filled. This is why gold is relatively unreactive.

4) It reacts easily with oxygen in the air and forms layer of aluminium oxide on its surfac

5) When a metal reacts with a non-metal, electrons transfer from the metal to the non-metal.

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