Question

Calculate the electrons required(ER), valence electrons(VE), and shared pairs(SP) FOR (CN)2.

Answer 1

The electrons required (ER) for (CN)2 is 2, the valence electrons (VE) is 11, and the shared pairs (SP) is 5.

Step-by-step explanation:

Step 1. Calculate the number of valence electrons.

(C)N-2: (4 x 1) + (5 x 1) + 2 = 11

Step 2. Draw a skeleton and connect the atoms with single bonds.

Obeys octet rule. Nitrogen's balanced. Carbon's balanced. Cyanide dianion's balanced.

ER = 2, VE = 11, SP = 5