Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.
Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.
Non metals generally form anions. They gain electrons during ionic bonding.
In the 3rd row all on the left side do the elements on the right are non-metals. In the 3rd column all the elements represent metallic properties 'cause they are metals.
Boron is not a metal; it is a metalloid. Metalloids have properties that are intermediate between metals and nonmetals. Boron has some metallic properties, such as being a good conductor of electricity, but it also exhibits nonmetallic characteristics.
Non-metals during a chemical combinations tend to gain electrons. Metals in chemical reactions will tend to lose their electrons easily.
The free electron model of metallic bonding helps to explain why metals can conduct electricity. In this model, metallic atoms are packed closely together, and some of their outer electrons are delocalized and free to move throughout the metal, allowing them to carry electrical current.
Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.
It helps explain metallic bonds.
A sea of electrons can be found in metals. The positive ions are arranged in fixed positions, while the electrons 'float' or 'wander' among the the positive ions. This makes metals good conductors of electricity. ----------------- Electrons of metals flow freely
Non metals generally form anions. They gain electrons during ionic bonding.
Mobile electrons are shared by all the atoms in an electron-sea model of a metallic bond. The electrons are delocalized, which means that they do not belong to any one atom but move freely about the metal's network of empty atomic orbitals.
Metallic bonds are able to conduct electricity only when they are dissolved in a liquid substance or when in molten, this is because these conditions cause the metallic bond to break down and allow the electrons used in the bond to be delocalised and disposited around the molten or liquid. This sea of free electrons is then able to pass through a current and conduct electricity.
They don't lose electrons to start with. A metallic bond has delocalised electrons which bond the cations with the electrons unless a sufficient amount of force breaks them. For example tearing aluminium foil Hope this helps
Electronegativities of metals are very different: alkali metals are very reactive, platinum metals very unreactive. Metals react with nonmetals.
In the 3rd row all on the left side do the elements on the right are non-metals. In the 3rd column all the elements represent metallic properties 'cause they are metals.
well basically they all have very unstable atoms and having unstable atoms. They also have only 1 outer electron and only then is an atom happy when it has a full outer shell.. This means that the alkali metals want to get rid of their extra electron and therefore means they would be very reactive with the group 7 metals. Hope this helps :D
Classical free electron theory was proposed by Drude .According to this there are some merits 1)It varifies ohm's law 2)It explains the electrical and thermal conductivities of metals. 3)It derives Weid man-franz law. $)it explains optical properties of metal. Demerits:- 1)The phenomena such as photoelectric effect,compton effect and the black body radiation could not be explained. etc... for more information contact venkat.rafa007@gmail.com