Table of Contents
Does NaCl have highest melting point?
Sodium Chloride has a high melting point, as it has a giant ionic lattice hence has strong electrostatic forces of attraction between oppositely charged ions, which requires lots of energy to overcome the forces.
Which has a higher melting point NaCl or CSCL?
The cesium chloride has a higher melting point because its ions are smaller, which makes the charges more dense. C. The sodium chloride has a higher melting point because of the greater charges of the ions, and hence the greater force of attractions between them.
Why does CaO have a high melting point than NaCl?
It is because the distance between the calcium and chloride ions’ nuclei, is less than the distance between the mercury and the chloride ions’ nuclei, given the fact that mercury atom has more number of orbitals and shells than calcium.
Does CaO have a low melting point?
The greater the size of the charge on an ion, the greater the force of attraction for its counterion. For example, calcium fluoride, CaF2, has a lower melting point (1418 oC) than calcium oxide, CaO (2572 oC).
Why the melting point of NaCl is high?
Sodium chloride contains positively charged sodium atom and negatively charged chlorine atom. Due to these oppositely charged species, there is a strong intermolecular force between them. Therefore, sodium chloride has a high melting point.
Why does MgO have a higher melting point than NaCl?
NaCl contains attraction between Na+ & Cl- ions, whereas in MgO the attraction is between Mg+2 and O-2 ions, the attraction between ions in MgO is greater than NaCl. Therefore MgO will exhibit a higher melting temperature.
Is NaCl stronger than CsCl?
CsCl has more ionic bonds than NaCl. The lattice energy is directly proportional to the ion charge and inversely proportional to the radius of the atom. The radius of Cs+ is now much greater than Na+ between NaCl and CsCl, even though CsCl is more ionic, but there is still more radius and thus less lattice energy.
Which has more melting point LiCl or NaCl?
LiCl has lower melting point than NaCl because it is covalent whereas NaCl is ionic.