CH3OH, C2H4, O2,CO2 and N2. Use dot-and-cross diagrams to showthe electronic configurations in these and similarmolecules

Sure, let's go through each of these molecules one by one:

1. CH3OH (Methanol): Methanol consists of a carbon atom bonded to three hydrogen atoms and one hydroxyl group (OH). The carbon atom shares its four valence electrons (in its outer shell) with the three hydrogen atoms and the oxygen atom in the hydroxyl group. The oxygen atom in the hydroxyl group also shares two of its six valence electrons with the hydrogen atom. The remaining four electrons on the oxygen atom are non-bonding pairs, also known as lone pairs.

2. C2H4 (Ethene): Ethene consists of two carbon atoms double bonded to each other, with each carbon atom also bonded to two hydrogen atoms. Each carbon atom shares four of its valence electrons in the double bond and one each with the two hydrogen atoms. The hydrogen atoms share their single electron with the carbon atom.

3. O2 (Oxygen): Oxygen consists of two oxygen atoms double bonded to each other. Each oxygen atom shares two of its six valence electrons in the double bond. The remaining four electrons on each oxygen atom are non-bonding pairs.

4. CO2 (Carbon Dioxide): Carbon dioxide consists of a carbon atom double bonded to two oxygen atoms. The carbon atom shares its four valence electrons in the double bonds with the oxygen atoms. Each oxygen atom shares two of its six valence electrons in the double bond. The remaining four electrons on each oxygen atom are non-bonding pairs.

5. N2 (Nitrogen): Nitrogen consists of two nitrogen atoms triple bonded to each other. Each nitrogen atom shares three of its five valence electrons in the triple bond. The remaining two electrons on each nitrogen atom are non-bonding pairs.

Remember, in dot-and-cross diagrams, the dots and crosses represent electrons from different atoms. The shared electrons (in bonds) are usually represented by a line. The non-bonding pairs (lone pairs) are represented by dots or crosses.