What are the physical properties of a metal?

Physical properties 1. Hardness: Metals are very hard by nature (except few like mercury) and they cannot be easily torn or broken. This makes more durable and hence can be used for long standing needs like buildings, bridge construction etc. Metals like iron, aluminum are widely used in making of heavy machines and also constructions.

What are the physical properties of pure iron?

Characteristics Pure iron is a silver-colored metal that conducts heat and electricity well. Iron is too reactive to exist alone, so it only occurs naturally in the Earth’s crust as iron ores, such as hematite, magnetite, and siderite. One of iron’s identifying characteristics is that it is strongly magnetic.

What are the properties of the alkaline earth metals?

The alkaline earths have two electrons in the outer shell. They have smaller atomic radii than the alkali metals. The two valence electrons are not tightly bound to the nucleus, so the alkaline earths readily lose the electrons to form divalent cations. Typically malleable and ductile. Relatively soft and strong.

Which is harder a metal or a nonmetal?

Diamond and Iodine – nonmetals but lustrous. Sodium and Potassium are metals but have low tensile strength. Sodium and Potassium are metals but are soft and can be cut by knife. Diamond is a nonmetal but very hard substance. It is the hardest natural substance known.

Magnetic properties refer to the metal and alloys such as iron, steel and associated alloying elements such as cobalt and Nickel. All other materials are non-magnetic. Metals and alloys are classified as either hard or soft.

Which is the best description of Physical Metallurgy?

Physical metallurgy is the science of making useful products out of metals. Metal parts can be made in a variety of ways, depending on the shape, properties, and cost desired in the finished product.

Why are metals known for their high reflectivity?

Metals are known for having high reflectivity, which explains their shiny appearance. Since the reflectance of light by metals is high, their absorption must also be high, because a high reflectance implies that light cannot penetrate the metal with considerable efficiency.

Why is the strength of a metal important?

Strength is a critical factor in metal uses, for example, some applications require stronger aluminum parts, while some products need high steel hardness or yield strength of steel, this may determine the selection of CNC machining material or product design.