Draw the structural formula for a hydrogen molecule (h2) and an oxygen molecule (o2). remember that each line represents an electron pair being shared

Answer : The structural formula for a hydrogen molecule and an oxygen molecule are shown below.

Explanation :

Structural formula : In the structural formula, the bonding and type of bonds which holds the atoms in molecule together are shown.

First we have to determine the Lewis-dot structure.

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot' and two dots combine to form a single bond.

The given molecule is,

As we know that hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in = 2(1) = 2

According to Lewis-dot structure, there are 2 number of bonding electrons and 0 number of non-bonding electrons. That means, there are 1 electron pairs being shared between the hydrogen-hydrogen atom.

The given molecule is,

As we know that oxygen has '6' valence electron.

Therefore, the total number of valence electrons in = 2(6) = 12

According to Lewis-dot structure, there are 4 number of bonding electrons and 8 number of non-bonding electrons. That means, there are 2 electron pairs being shared between the oxygen-oxygen atom because oxygen has ability to form double bond.

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