An alloy
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Roman numerals are used to identify the oxidation state of transition metals with more than one possible oxidation state.
It is a common coin not struck in any precious metals and is only worth face value unless in proof condition.
Metals, Non-metals, metaloids, and gases.
The Periodic table can be divided into nine families of elements each having similar properties. The families include: Alkali metals Alkaline metals The Transition metals Other metals Metalloids Non-metals Noble gases Rare Earth
It shows the state of ionisation.