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Does sodium have a higher melting point then potassium?
Yes, sodium has a higher melting point than potassium. Sodium has a melting point of 97.8°C while potassium's melting point is much lower at 63.38°C.
Why the melting point of magnesium oxide is much higher than sodium chloride?
Melting point is dependant upon packing and intermolecular forces. Magnesium and Sodium are both metals, and therefore have metallic bonding. Both are a lattice of positively charged ions surrounded by a sea of delocalized electrons. Magnesium however has 2 delocalized electrons for every one magnesium atom, it therefore forms smaller ions than Sodium, which pack more closely together. The higher number of delocalized electrons in magnesium also pull the positively charged even closer together.
What has the higher melting point sodium chloride or aluminum oxide?
Aluminum oxide has a higher melting point than sodium chloride. Aluminum oxide has a melting point of around 2072°C, while sodium chloride has a melting point of 801°C.
Sodium is more or less active than magnesium?
Sodium is less active than magnesium. Magnesium is located higher in the reactivity series of metals than sodium, indicating that magnesium is more reactive and likely to form compounds with other elements compared to sodium.
Would the melting point of caesium be higher or lower then sodium?
The melting point of cesium is lower than that of sodium. Cesium has a melting point of 28.4°C, while sodium has a melting point of 97.8°C.
Is the melting point of sodium higher or lower than rubidium?
Sodium has a melting point of 97.72 oC and rubidium has a melting point of 39.48 oC.
Does sodium chloride or phosphorus trichloride have a higher melting point?
The melting point of sodium chloride is 801 0C. The melting point of phosphorus trichloride is -93,6 0C.
What are the three elements that have lower melting points than calcium?
The three elements that have lower melting points than calcium (which has a melting point of about 842°C) are sodium (melting point 97.8°C), potassium (melting point 63.5°C), and magnesium (melting point 650°C). Sodium and potassium are alkali metals, known for their low melting points, while magnesium, though a metal, also has a relatively lower melting point compared to calcium.
Does salt have a higher or lower melting point than Na or Cl?
Common table salt (sodium chloride) has a much higher melting point than either sodium or chlorine.
Why is there such a big difference between the melting points of sodium fluoride and magnesium oxide?
The melting point of the subtance depends on how strong the bonds are and every metal has a different melting point because of it.
Which has a higher melting point Sodium Chloride or Ethyl Alcohol?
Sodium Chloride has a higher melting point because at room temperature it is a solid but Ethyl alcohol has already melted, as it is liquid.
Why is melting point of sodium fluoride higher than that of sidium iodide?
The higher melting point of sodium fluoride compared to sodium iodide is due to stronger forces of attraction between the ions in the crystal lattice of the fluoride compound. Fluoride ions are smaller and have a higher charge density compared to iodide ions, leading to stronger electrostatic forces between the ions in sodium fluoride, resulting in a higher melting point.
