Classify the above elements as metals / non - metals ?
Answers
Answer:
British chemist John Newlands presented a classification of the 62 known elements.
Explanation:
The metals are to the left of the line (except for hydrogen, which is a nonmetal), the nonmetals are to the right of the line, and the elements immediately adjacent to the line are the metalloids. When elements combine to form compounds, there are two major types of bonding that can result.
Answer:
Metals are materials holding or possessing the characteristics of being shiny, hard, fusible, malleable, ductile, etc. Few examples of metals (materials) are – Gold, Silver, Aluminium, Copper, Iron, etc.
The physical properties of metals are:
- Lustrous :
The property of metals which in the pure state usually shines. The shine on the metallic surface is the metallic luster. They shine in light due to the reason that the metals possess free electrons that vibrates on getting in contact with light.
Malleability :
Malleability refers to the property of metals by which they can be beaten into thin sheets. One such example is silver metal beaten to make silver foil used for decorating sweets and gold is also a malleable metal.
Ductility
Ductility refers to the properties of metals by virtue of which they can be drawn into thin wires. One example of ductility is copper and iron which can be drawn in to thin wires.
Sonorous
On being struck hard, the metals produce a ringing sound. Due to this property, they sonorous. For example – the school bell produces a loud ringing sound when stuck with the hammer hard. Some examples are – Iron, Gold, Copper, Aluminium, Magnesium, and many more.
The physical properties of non – metals are :
Non – metals may be either solids, liquids, or gases.
Non-metals are poor conductors of heat and electricity except Graphite.
They do not possess metallic luster.
Non-metals are not sonorous, they do not produce a ringing sound.
Non-metals possess no malleability.
They are not ductile.
They have dull luster, however, iodine is lustrous.
Some example of non – metals are carbon, oxygen, Sulphur, phosphorous, and many more.
Hope this answer can helps you dear...