Final answer:
The 'chemistry is range' mentioned refers to the specified ranges of alloying elements in an alloy, such as percentages of carbon and manganese in steel. These ranges determine the metal's properties such as hardness and strength.
Step-by-step explanation:
The correct answer is option: 'Chemistry.' The term 'chemistry is range' in the context of your question likely refers to the specified range of alloying elements used when producing a metal. In alloys, elements are mixed to impart certain physical and chemical characteristics to the resulting metal.
Common alloys include brass, bronze, and steel, with their properties depending on the ratio and types of elements used. Alloys can be substitutional, where elements replace each other in the crystal structure, or interstitial, where smaller atoms fit between larger ones.
The composition of a particular alloy, such as steel, typically includes iron with a certain percentage of carbon, manganese, and chromium, each contributing to the metal's overall properties like hardness, strength, and resistance to rust.
Understanding the periodic table is also helpful, as it organizes elements, including metals, in a way that groups with similar chemical properties are together, aiding in predicting how they might behave when combined in an alloy.