hybridization notation

[305115396]

When writing out the notation to indicate hybridization within sigma bonds, I noticed that the textbook writes it as 2sp2. A good reference is question 4.95. Basically why is it written as 2sp2 instead of sp2?

[KatelinTanjuaquio 1L]

When referring to hybridization notation, it does not matter whether it is written 2sp2 or sp2. You would only use 2sp2 when writing the composition of each bond.

[Carlos De La Torre 2L]

The 2 in 2sp^2 is the energy level of the hybridized orbital it is simply the period of the element.

[sarahartzell1A]

The 2 refers to the energy level of the orbital.