Unlike metals, pure elemental non-metals do not have the ability to share electron orbitals as easily. This means non-metals tend to have poor bond strength across the entire material. Because of these weak bonds, non-metals tend to be flaky and powder as well as brittle. This trend of weak bonds isn't entirely true for all non-metals; diamonds, an allotrope of carbon, have incredibly strong bonds and crystal structure. A substance's melting point is largely dependent on how much energy is necessary to tear a substance's atoms from their positions relative to their neighboring atoms. As sulfur is a non-metal it exhibits these properties and this is why its melting point is rather low compared to other substances, particularly metals.
Lead is not actually an exception to the trend of melting points in metals. As you go down the groups, the mpt of the metals decrease because there is more shielding around the nucleus and the electrons are not as attracted [to the nucleus]. Although the nuclear charge is greater in, for example Thallium than in aluminium, the increase in shielding in thallium overcomes the greater nuclear charge causing the metallic bonds are weaker and require less energy to break.
This trend is observed in every group of metals.
non-metals have lower density, melting and boiling point but diamond has higher density, melting and boiling point.
Non-metals have lower boiling points than metals. A link can be found below.
Metals have metallic bonds which plastics lack.Plastics lack delocalised electrons that are found in metals.
no
HBr has a lower melting point of -86.8 degrees C. HF has a melting point of -83 degrees C.
non-metals have lower density, melting and boiling point but diamond has higher density, melting and boiling point.
Seeing as metals are solid at room temperature (except for mercury, which is a liquid), and heating metals causes them to become liquid (melt, which is the melting point). Then the boiling point of metals is going to be extremely high.
Non-metals have lower boiling points than metals. A link can be found below.
Tungsten has the highest melting point of the elements and it is a metal.
Low Melting Point. Most metals have high melting point and are solids at room temperature.
Metals have metallic bonds which plastics lack.Plastics lack delocalised electrons that are found in metals.
Low Melting Point. Most metals have high melting point and are solids at room temperature.
The melting point of francium is not measured, only supposed by comparison with the melting points of the other alkali metals.
Covalent compounds have a lower melting point.
There is no common melting point, it will vary a lot with the type of metal.
Three metals that when melted together can make the phantom sword. These metals are in The Legend of Zelda Phantom Hourglass.
no