Which of the following is the correct structure of 2-methyl-3-heptene a. CH3-CH2-C(CH3)=CH-CH2-CH2-CH3
b. CH3-CH2CH=CH-CH2CH(CH3)-CH3
c. CH3-CH2-CH=CH-CH-(CH3)-CH2-CH3
d. CH3-CCH(CH3)-CH=CH-CH2CH2-CH3

answer d

Explanation:

methy group is in the second position while the double bond is in the third position

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8