What is the electronegativity difference for a bond between potassium and iodine?
A. 3.3
B. 0.4
C. 4.6
D.1.7
The electronegativity difference between potassium and iodine is 2.7 – 0.8 = 1.9, which is > 1.7. The bonding in KI is predicted to be ionic.
thx
To determine the electronegativity difference between potassium (K) and iodine (I), we need to look up their electronegativity values on the Pauling scale.
The electronegativity of potassium is 0.8, and the electronegativity of iodine is 2.5.
To calculate the electronegativity difference, we subtract the electronegativity of potassium from the electronegativity of iodine:
2.5 - 0.8 = 1.7
Therefore, the electronegativity difference for a bond between potassium and iodine is 1.7.
The correct answer is D. 1.7.
To determine the electronegativity difference for a bond, you need to know the electronegativity values of the two elements involved. Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond.
In this case, we need to find the electronegativity values for potassium (K) and iodine (I). The electronegativities can be found in a periodic table or reference source like a chemistry textbook.
According to the Pauling electronegativity scale, the electronegativity value for potassium is 0.82, and for iodine, it is 2.66.
To find the electronegativity difference between potassium and iodine, subtract the electronegativity value of the less electronegative atom (potassium) from the electronegativity value of the more electronegative atom (iodine).
Thus, the electronegativity difference is 2.66 - 0.82 = 1.84
However, none of the given options (A, B, C, D) match this value. Therefore, none of the provided answers are correct for the electronegativity difference between potassium (K) and iodine (I).