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Is metal an atom a molecule or a compound?
A metal is normally viewed as cations in a sea of delocalised electrons. It is the metal atoms which donate their valence electrons to the sea of delocalised electrons.
What is molecular orbitals extending over more that two atoms called?
Delocalised
Do alkali metals conduct heat and electricity?
Yes, they are metals- good conductivity is a characteristic of metals that have delocalised electron clouds.
What does the phrase delocalized electrons mean?
Delocalisation is when electrons are not associated with one atom but are spread over several atoms. So the electrons are not directly bonded with any atoms but effectively 'float' above and below the molecule in electron clouds.
Why do plastics have a lower melting point than metals explain in terms of chemical bonding?
Metals have metallic bonds which plastics lack.Plastics lack delocalised electrons that are found in metals.
Why Magnesium metal is a better conductor than Sodium metal?
Because there are a higher amount of delocalised electrons.
Is aluminuim a conductor?
Yes ,because it has delocalised electron
Is metal an atom a molecule or a compound?
A metal is normally viewed as cations in a sea of delocalised electrons. It is the metal atoms which donate their valence electrons to the sea of delocalised electrons.
What type of bonding involves de-localized electrons?
Metallic bonding involves delocalised electrons, which can transfer heat and electricity across the metal. Also, graphite and benzene contains delocalised electrons.
How is something a conductor of electricity?
if something has delocalised electrons it has the possibilty to conduct electricty
What is molecular orbitals extending over more that two atoms called?
Delocalised
Why do metal often make good conductors?
They contain delocalised electrons which can move and carry charge.
What is the difference between hard and soft electrophile?
They differ in the ability of their valance electrons to be removed, ie their polarisable ability. Hard electrophile valance electrons are not easily delocalised (hardly polarisable). Soft electrophile valance electrons are easily delocalised (strongly polarisable).
Does NH4 have delocalized electron?
NH4+ is isoelectronic with CH4. The bonding is similar- 4 electron pairs. these are not delocalised.
Which electron arrangement is that of a metallic element?
There is a sea of delocalised electrons formed in a metallic element, and the ions are attrracted to this.
Why conductors conduct heat and electricity while insulators are known as poor conductors?
Conductors conduct heat and electricity well because they have delocalised electrons in their structure. Insulators, on the other hand, do not have delocalised electrons and therefore do not conduct heat and electricity as a conductor, although they do conduct to some extent.
Is metal a condutor of heat?
Metals have delocalised electrons in their outer electron orbits which can move to conduct electricity and heat.
