Interpretation:
It is required to write seven diatomic molecules and why they exist as diatomic molecules.
Concept introduction:
Diatomic molecule means a molecule which contains two atoms of same or different element in nature.
Answer to Problem 9STP
The seven molecules are:
These molecules exist as diatomic molecules to complete their octet (in case of hydrogen its doublet).
Explanation of Solution
If an element shares its electrons with one other element of same or different type, it forms diatomic molecule.
For example: Hydrogen
Let’s how they complete their octet by sharing their electrons:
Chlorine has seven electrons in its valence shell. It shares one electron with other chlorine to complete the octet.
Thus two atoms of same or different element if exist together in nature are diatomic molecules and they do so to complete their octet and become stable.
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