Answer to Question #143494 in General Chemistry for Liam donohue

Question

For the chlorinated hydrocarbon dichlorobutane how many electrons are not being shared(Do not include core electrons)

Answer 1

Electronic configuration of C is :

[He] 2s2 2p2

So, there are 4 valence electrons capable of maximum of 4 bond formation.

electronic configuration of H is :

1s1

So, there are 1 valence electrons capable of maximum 1 bond formation.

electronic configuration of Cl is :

[Ne]3s2 3p5

So, there are 7 valence electrons capable of maximum 7 bond formation technically

Formula of dichlorobutane is : C4H8Cl

Here each of Carbon forms 4 covalent bond by sharing four electrons.

Each of Hydrogen forms 1 covalent bond by sharing one electron.

And each of chlorine forms 1 bond by sharing one electron.

So there are 6 more electrons left in chlorine atom as unshared electron.

i.e. there are 6 unshared electron in the chlorinated hydrocarbon dichlorobutane excepting core electrons.