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H2S is called Hydrogen sulfide. First we need to count the total number of valence electrons. We just add the valence electrons of each atom involved.
S = 6
H = 1 x 2
Next, we have to assign the central atom; In this case it is S.
Now we have to connect the atoms and form a bond. We can form two S-H bonds.
Finally, we have to distribute The remaining electrons on S provided that it follows the octet rule.
: S :
H2S has a similar structure with water. It's geometry is bent. The two lone pairs in the S atoms would tend to repel thus making the angle between H-S-H smaller than 109 degrees. It's observed angle is about 92 degrees. That phenomenon also accounts to its polarity. It is a polar molecule.
figure of hydrogen sulfide molecule
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