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If the electronegativity difference betw...

If the electronegativity difference between bonding atoms is 1.7 then the chemical bond is nearly

A

50% ionic

B

100% ionic

C

100% covalent

D

Predominantly ionic

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The correct Answer is:
To determine the nature of the chemical bond when the electronegativity difference between bonding atoms is 1.7, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Electronegativity**: Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The difference in electronegativity between two atoms can indicate the type of bond that will form between them. 2. **Identify the Threshold Values**: - If the electronegativity difference is **greater than 1.7**, the bond is predominantly ionic. - If the electronegativity difference is **less than 1.7**, the bond is predominantly covalent. - If the electronegativity difference is **exactly 1.7**, the bond is considered to be **50% ionic and 50% covalent**. 3. **Apply the Given Value**: In this case, the electronegativity difference is given as **1.7**. 4. **Determine the Bond Type**: Since the electronegativity difference is exactly **1.7**, we conclude that the bond formed between the two atoms is **50% ionic and 50% covalent**. 5. **Final Answer**: Therefore, the chemical bond is nearly **50% ionic and 50% covalent**.
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