Question

Write differences between metals and non-metals based on physical properties.

Answer 1

Answer:

When comparing their density, metals have a high to moderate density, whereas non-metals have low to moderate density. While metals are good conductors of electricity and heat, non-metals are poor conductors. Unlike non-metals, metals are ductile, which means they can be stretched into wires.

Explanation:

Metals and Nonmetals are the elements present around us. So, it is important to know whether a particular element is a metal or nonmetal. Materials can be divided into metals and nonmetals. The characteristic feature of metals like copper and aluminium is a high electrical and thermal conductivity, while nonmetals such as phosphorus metal and sulfur are insulators. Elements are distinguished as above based on their properties.

What are Metals?

Majority elements in the periodic table are metals. This includes alkali metals, transition metals, lanthanides, actinides, and alkaline earth metals. Metals are separated by nonmetals on a periodic table through a zigzag line starting from carbon, till radon. The elements between the two are phosphorus, selenium, and iodine.

These elements and elements right to them in the periodic table are nonmetals. Elements present just to the left of the line are termed as semimetals or metalloids. These will have the combined properties of both metals and nonmetals.

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Answer 2

Answer:

Metals are elements that are often hard due to a strong metallic bond between the atoms. Nonmetals, on the other hand, are frequently brittle components.

Explanation:

The differences between metals and non-metals are based on physical properties as follows below:

1. Metals are shiny and smooth but nonmetals are generally dull.
2. Metals are typically hard substances, however, the hardness varies from material to substance. Except for diamond, which is the hardest material on the planet, nonmetals are soft.
3. Malleability is the ability of metals to be transformed into thin sheets when pounded with a hammer. Non-metals, on the other hand, are fragile, as they break down into fragments when beaten with a hammer.
4. Metals have the ability to be pulled into wires due to ductility, whereas nonmetals do not.
5. Metals with sonorous properties provide a deep or ringing sound. Non-metals, on the other hand, are not sonorous.

Hence, the differences between metals and non-metals are based on physical properties as explained above.

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