Hello,

1. Ideal Metal - There is no specific ideal element as we do need all the elements for the ideal survival of the human race. The ideal element may differ from the individual perspective.

2. Coin Metal - The metals that are used for making coins are called coin metals. Some of the examples are copper, silver and gold.

3. Synthesized Element - A synthetic element is one of 24 chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor. They are called "synthetic", "artificial", or "man-made".

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