Complete the following sentence: Substances within a homologous series have the same ______ ; Your answer here;group.

Give three characteristics of a homologous series.

The following two alcohols are members of a homologous series and they are isomers. CH3 ― CH2 ― CH2 ― CH2 ― OH and (CH3)2CH ― CH2 ― OH   Explain why they are isomers.

Which two of the following organic compounds belong to thesame homologous series?
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Lithium, sodium and potassium are all in the same group (group 1) of the periodic table, because they __________ in a similar way. What word completes the sentence?

Fluorine, chlorine and bromine are all in the same group (group 7) of the periodic table because they __________ in a similar way. What word completes the sentence?