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pychu [463]
3 years ago
14

To draw a Lewis structure, first add the number of outer (valence) electrons contributed by each atom to obtain the total number

of outer electrons. What is this value for a molecule of H2CCH2?
Chemistry
1 answer:
Alex777 [14]3 years ago
4 0

Answer:

12 is the total number of outer electrons  for a molecule of H_2C=CH_2

Explanation:

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'.

Valence electron of carbon = 4

Valence electron of hydrogen = 1

Number of carbon atoms in H_2C=CH_2 = 2

Number of hydrogen atoms in H_2C=CH_2 = 4

Total number of valence electrons :

2\times 4+4\times 1 =12

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