Thursday, April 11, 2019

Chemistry class X bonding in carbon chapter 2 carbon and its compund part 2

The shared pair of electrons is said to constitute a single bond betweens the two hydrogen atoms a single bond is also represented by a line between the two atoms The atomic number of chlorine is 17 what would be its electronic configuration and its valency chlorine forms a diatomic molecule cl2 can you draw electron dot structure for this molecule note that only the valency shell electrons need to be depicted
                In this case of oxygen we see the information of a double bond between two oxygen atoms this is because an atom of oxygen has six electrons in its L shell and it require two more electron to complete its octet so each atom of oxygen shares two electron with another atom of oxygen to give us the structure the two electrons contributed by each oxygen atom give rise to two shared pairs of electrons this is said to constitute a double bond between the two atoms
      Can you know depict a molecule of water showing the nature of bonding between one oxygen atom and two hydrogen atoms does the molecules has single bonds or double bonds
        What  would happen in the case of the diatomic molecule of nitrogen contribute three electrons giving rise to three shared pairs of electrons this is said to constitute a triple bond between the two atoms the electron dit structure of N2 and its triple bond can be depicted
       A molecule of ammonia has the formula NH3 can you draw the dot electron dot structure for this molecule showing how all four atoms achieve noble gas configuration will the molecule have single double or triple bonds
      Let us now take a look at methane which is a compound of carbon methane is widely used as fuel and is a major is also one of the simplest compounds formed by carbon methane has a formula ch4 hydrogen as you know has a valency of 1 carbon is tetra valent because it has four valency electrons in order to achieve noble gas configuration carbon shares these electrons with four atoms of hydrogen
Such bonds which are formed by the sharing of an electron pair between two atoms are known as covalent bonds covalently bonded molecules are sent to have strong bonds within the molecule but intermolecular forces are small this gives rise to the low melting and boiling points of these compounds since the electrons are shared between atoms and no charged particles are formed such covalent compounds are generally poor conductors of electricity

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