Question

Write out the molecular formula and Lewis structure for cyanide

Answer 1

CN- the minus goes on top but that should be correct!! 

Answer 2

Answer :  The molecular formula of cyanide is, $CN^-$ and Lewis structure of cyanide is shown below.

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'.

The given molecule is, $CN^-$

As we know that carbon has '4' valence electrons, nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in $CN^-$ = 4 + 5 + 1 = 10

The skeleton structure of the compound, C molecule act as a central atom and is bonded to N with one sigma-bond and two pi-bonds with one negative charge.

Hence, the molecular formula of cyanide is, $CN^-$ and Lewis structure of cyanide is shown below.