Name 2 covalent hydrides and 2 electrovalent hydrides.
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Covalent Hydrides
These are hydrides that form when hydrogen reacts with p-block elements. These are highly electronegative elements, far more than hydrogen. Hydrogen atoms form a covalent bond with these p-block atoms. The general chemical formula for Covalent Hydrides is XH(8-n), where “n” is the number of electrons the element has in its outermost shell.
Some examples of covalent or molecular hydrides are HCl, HFl, H2O, NH3 etc. Let us take a look at some chemical characteristics
These hydrides consist of individual covalent molecules. These covalent bonds are weak and have a weak interparticle force
Molecular hydrides due to their weak covalent bonding have verylow melting and boiling points
Like most non-metal compounds covalent hydrides are poor conductors of electricity
They can be in a liquid state if their properties are adapted due to hydrogen bonding. Like in the case of water there is a hydrogen bond, and it slightly alters the chemical properties of these compounds.
As we move across the periodic table the hydrogen compounds with these non-metals become more acidic
Hydrogen forms the most number of hydrides with Carbon. These are all covalent hydrides, formed by covalent bonding between hydrogen and carbon.
H2(g)+Cl2(g)→2HCl(g)
3H2(g)+N2(g)→2NH3(g)
Metallic Hydrides
These are compounds that Hydrogen forms by reacting with transition elements. These transition elements are:
Transitional Metals in group 3, 4 and 5 (which are in the d-block)
All the f-block elements
One metal of group 6 – Chromium
There are three groups of the d-block Groups 7,8, and 9 that do not form compounds with hydrogen. This phenomenon is known as the Hydride Gap of the d-bock. Let us see some characteristics of metal hydrides are:
They are found in a solid state. They have the dark hues of metals
Again like all metal compounds, they are good conductors of electricity since they have a high thermal capacity.
They can decompose into metal and hydrogen gas. but this reaction is easily reversible.
PLEASE MARK MY ANSWER AS A BRAINLIEST.
These are hydrides that form when hydrogen reacts with p-block elements. These are highly electronegative elements, far more than hydrogen. Hydrogen atoms form a covalent bond with these p-block atoms. The general chemical formula for Covalent Hydrides is XH(8-n), where “n” is the number of electrons the element has in its outermost shell.
Some examples of covalent or molecular hydrides are HCl, HFl, H2O, NH3 etc. Let us take a look at some chemical characteristics
These hydrides consist of individual covalent molecules. These covalent bonds are weak and have a weak interparticle force
Molecular hydrides due to their weak covalent bonding have verylow melting and boiling points
Like most non-metal compounds covalent hydrides are poor conductors of electricity
They can be in a liquid state if their properties are adapted due to hydrogen bonding. Like in the case of water there is a hydrogen bond, and it slightly alters the chemical properties of these compounds.
As we move across the periodic table the hydrogen compounds with these non-metals become more acidic
Hydrogen forms the most number of hydrides with Carbon. These are all covalent hydrides, formed by covalent bonding between hydrogen and carbon.
H2(g)+Cl2(g)→2HCl(g)
3H2(g)+N2(g)→2NH3(g)
Metallic Hydrides
These are compounds that Hydrogen forms by reacting with transition elements. These transition elements are:
Transitional Metals in group 3, 4 and 5 (which are in the d-block)
All the f-block elements
One metal of group 6 – Chromium
There are three groups of the d-block Groups 7,8, and 9 that do not form compounds with hydrogen. This phenomenon is known as the Hydride Gap of the d-bock. Let us see some characteristics of metal hydrides are:
They are found in a solid state. They have the dark hues of metals
Again like all metal compounds, they are good conductors of electricity since they have a high thermal capacity.
They can decompose into metal and hydrogen gas. but this reaction is easily reversible.
PLEASE MARK MY ANSWER AS A BRAINLIEST.
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