Potassium iodide is an ionic compound.What is the reason for potassium iodide's high melting point?They are solids at room temperature.The large number of strong electrostatic attractive forces.Strong covalent bonds in all directions in the lattice.Weak forces between the molecules.
Question
Potassium iodide is an ionic compound.What is the reason for potassium iodide's high melting point?They are solids at room temperature.The large number of strong electrostatic attractive forces.Strong covalent bonds in all directions in the lattice.Weak forces between the molecules.
Solution
Potassium iodide has a high melting point due to its ionic nature. Ionic compounds, such as potassium iodide, are formed by the electrostatic attraction between positively charged and negatively charged ions. This electrostatic attraction, also known as ionic bonding, is very strong, requiring a large amount of energy to overcome. This is why ionic compounds have high melting and boiling points.
The statement about "strong covalent bonds in all directions in the lattice" is not applicable to potassium iodide. This description is more fitting for covalent network structures like diamond or silicon dioxide, not ionic compounds.
The statement about "weak forces between the molecules" is also not applicable to potassium iodide. Ionic compounds do not consist of discrete molecules, so there are no intermolecular forces to consider. Instead, the entire crystal lattice is held together by the aforementioned strong ionic bonds.
Therefore, the high melting point of potassium iodide can be attributed to the large number of strong electrostatic attractive forces within its ionic lattice.
Similar Questions
) The diagram shows the structure of potassium iodide.Explain why a high temperature is needed to melt potassium iodide.
Explain why ionic substances have high melting points.
Ionic compounds tend to have high melting and boiling points. What is the primary reason for this?Group of answer choicesWeak intermolecular forces in the crystal latticeHigh kinetic energy of ionsStrong electrostatic forces between ions
There are very strong electrostatic forces of attraction in all directions in a giant ionic lattice.Why does this result in a very high melting point?A lot of energy is needed to overcome the electrostatic forces and separate the electrons from each other.A lot of energy is needed to overcome the electrostatic forces and hold the ions together.A lot of energy is needed to overcome the electrostatic forces and separate the atoms from each other.A lot of energy is needed to overcome the electrostatic forces and separate the ions from each other.
Sodium chloride is an ionic compound and has a melting point of 801oC.Why is the melting point of sodium chloride so high?Strong covalent bonds in all directions in the lattice.The large number of strong electrostatic attractive forces.Weak forces between the molecules.They are solids at room temperature.
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