bromomethane, ch₃br, is a very useful fumigant against a wide range of agricultural pests, from insects to…

bromomethane, ch₃br, is a very useful fumigant against a wide range of agricultural pests, from insects to the verticillium wilt fungus. draw the lewis structure of ch₃br.

bromomethane, ch₃br, is a very useful fumigant against a wide range of agricultural pests, from insects to the verticillium wilt fungus. draw the lewis structure of ch₃br.

Answer

Explanation:

Step1: Count valence electrons

Carbon (C) has 4 valence electrons, hydrogen (H) has 1 valence electron and there are 3 hydrogens, bromine (Br) has 7 valence electrons. So total valence electrons = 4+(1×3)+7 = 14.

Step2: Determine central atom

Carbon is the central atom as it can form more bonds than hydrogen and bromine.

Step3: Connect atoms with single - bonds

Connect the carbon atom to the three hydrogen atoms and the bromine atom with single - bonds. Each single - bond uses 2 electrons. So far, we have used (3 + 1)×2=8 electrons.

Step4: Add remaining electrons as lone - pairs

We have 14 - 8 = 6 remaining electrons. Place these 6 electrons as 3 lone - pairs on the bromine atom.

Answer:

The Lewis structure has a carbon atom in the center. It is single - bonded to three hydrogen atoms and one bromine atom. The bromine atom has 3 lone - pairs of electrons around it.