Ionic compounds generally have higher melting and boiling points.
The electrostatic attraction in an ionic bond is very strong hence a lot of heat energy is required to break it down and thus explaining why ionic bonds have high melting and boiling points. However,In covalent bonds, the intermolecular forces are very weak and is easily broken,hence lesser heat is required and thus covalent bonds have lower melting and boiling points.
Ionic compounds are the strongest of all, breaking the bonds takes a lot of energy, their boiling and melting points are much higher. Ionic compounds do not conduct electricity at all, except one that i can't remember
lier ionic compounds conduct electricity.
They conduct electricity when they are in solution or in a molten state
Molecular compounds have lower melting points, lower boiling points and lower conductivity than ionic. This is because the ionic compounds are giant lattice compounds hef together with electrostatic forces which when dissolved or mlten have free ions that can conduct electricity. Molecular compounds in th eliquid and solid are held together with weak intermolecuar forces, (van der Waals) and when molten or dissolved are uncharged so that they do not conduct.
As a generalization, the melting and boiling points of ionic compounds are substantially higher than the corresponding characteristics of covalent compounds. However, there are some ionic compounds with lower melting points than many covalent compound. Some substituted tetra-ammonium salts in particular are liquid at room temperature. There are also some covalent compounds such as diamond with higher melting points than most ionic compounds.
As a generalization, the melting and boiling points of ionic compounds are substantially higher than the corresponding characteristics of covalent compounds. However, there are some ionic compounds with lower melting points than many covalent compound. Some substituted tetra-ammonium salts in particular are liquid at room temperature. There are also some covalent compounds such as diamond with higher melting points than most ionic compounds.
In general, ionic compounds have higher conductivity, melting points, and boiling points than molecular compounds.
Let me again stress that in general.
They all have lower points than those of ionic compounds
Ionic compounds have higher melting and boiling points than moleculars compounds. They do not vaporize as easy,
The electrical conductivity of different materials is affected differently when dissolved in water. For example, anhydrous Sodium Chloride changes from a non-conductor to a one when dissolved.
Covalent bonds are different from ionic bonds because ionic bonds involve the sharing of electrons. Ionic bonds are also electrically conductive.
yes
the electrons involved in metallic bonding are delocalised - they are free to move which accounts for electrical conductivity. In ionic bonds the electrons are tightly bound to individual atoms. Generally covalent bonds have localised electrons, in pairs in individual bonds. However there are delocalised electrons in some situations - take graphite extensive pi bonds allow for delocalisation and electrical conductivity.
density, conductivity.
The electrical conductivity of different materials is affected differently when dissolved in water. For example, anhydrous Sodium Chloride changes from a non-conductor to a one when dissolved.
thermal and electrical conductivity
low, outside
Electrical conductivity is flow of electrons between two different points having different electric potentials. Thermal conductivity is flow of electrons between two different points having different temperatures. Electrical Conductivity in solids, is purely based on number of free electrons (number of free electrons and holes in semiconductors). But thermal conductivity is based on number of free electrons and also phonons. Electrical conductivity in liquids and gases is also depends on number of free electrons but thermal conductivity in liquids and gases is because of molecular collision.
For electrical conductivity silver has not much advantage copper is much cheaper. The electrical conductivity advantage for silver is in the ratio 63.0 to 59.6. Silver 18.50 USD/oz Copper 3.8 USD/lb Note the different units for the comparison.
The thermal conductivity of Barium is expressed by the formula :18.4 W·m−1·K−1, So, yes, the chemical element, Barium conducts heat. However, compounds of Barium may have different degrees of thermal conductivity.
Covalent bonds are different from ionic bonds because ionic bonds involve the sharing of electrons. Ionic bonds are also electrically conductive.
it means the rate transfer of heat through this metal and coductivity is the measure of this abillity
Metalloids have some properties similar to properties of non metals; metalloids have bad thermal and electrical conductivity, they are brittle, soft etc.
Conductivity is the reciprocal of resistivity, and is measured in siemens per metre (S/m). Resistivity is measured in ohm metres.
Copper and gold are different metal elements with different properties. The thermal conductivity of gold is 318W/mK, whereas the thermal conductivity of copper is slightly higher at 401W/mK. The electrical conductivity of copper is slightly higher at 5.96 x107 S/m than gold which is 4.11×107 S/m.
yes