List the reactive intermediates produced by the fission of a covalent bond and describe their main characteristics.

(N/A) The reactive intermediates produced by the fission of a covalent bond are Carbocations,Carbanions,and Free radicals.

Intermediate	$1^{\circ}$ (Primary)	$2^{\circ}$ (Secondary)	$3^{\circ}$ (Tertiary)
Carbocation	$CH_3^+, CH_3CH_2^+$	$(CH_3)_2CH^+$	$(CH_3)_3C^+$
Carbanion	$:CH_3^-, CH_3CH_2^-$	$(CH_3)_2CH^-$	$(CH_3)_3C^-$
Free radical	$CH_3\bullet, CH_3CH_2\bullet$	$(CH_3)_2CH\bullet$	$(CH_3)_3C\bullet$

Characteristics:
$1$. These intermediates are highly unstable and reactive species formed during the course of a chemical reaction.
$2$. The stability of these intermediates is influenced by the inductive effect and hyperconjugation of the attached alkyl groups.
$3$. In these species,the central carbon atom is typically bonded to three other atoms or groups.