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Made from different materials. Bakelite is hard and rather brittle, polythene is softer and flexible.

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Which increases as the electro negativity difference between 2 atoms increases?

The strength of the chemical bond between the two atoms increases as the electronegativity difference between them increases. A higher electronegativity difference leads to a more polar bond, resulting in a stronger attraction between the positively-charged and negatively-charged ends of the bond.


Why electronegativity difference decreases when oxidation number increases of an oxide?

As the oxidation number of an oxide increases, the oxide becomes more ionic in nature. This results in a closer sharing of electrons between the elements, reducing the electronegativity difference between them. In ionic compounds, the difference in electronegativity is less significant compared to covalent compounds.


How does the difference in electronegativity between two atoms affect the nature of their bond, specifically in terms of making it ionic?

The difference in electronegativity between two atoms affects the nature of their bond by determining if it is ionic. When there is a large difference in electronegativity, one atom will attract the shared electrons more strongly, leading to the formation of an ionic bond where one atom gains electrons to become negatively charged (anion) and the other loses electrons to become positively charged (cation).


Why lithium iodide is covalent in nature?

Lithium iodide is considered covalent in nature because lithium is a metal and iodine is a nonmetal, resulting in the formation of a polar covalent bond between them. The electronegativity difference between lithium and iodine is not large enough to form an ionic bond. As a result, lithium iodide exhibits covalent characteristics.


Is there a difference between silica and silicon?

Yes, there is a difference between silica and silicon. Silica is a compound made of silicon and oxygen, commonly found in nature as quartz, while silicon is a chemical element with the symbol Si and atomic number 14, often used in electronic devices as a semiconductor.

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