Question

What is halogens? ALSO PLZZ EXPLAIN WHAT IS HOMOLOGOUS SERIES . FOR SUITABLE ANSWER YOU WILL GET 40POINTS BUT I NEED EVERYTHING CLEAR..

Answer 1

halogens is any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made.                      

A homologous series in organic chemistry is a group of organic compounds (compounds that contain C atoms) that differ from each other by one methylene (CH2 ) group. ... For example, methane and ethane are homologues and belong to the same homologous series. They differ from each other by one CH2 group.

Answer 2

DEFINITION OF HALOGENS
Vertical columns on the periodic table containing elements that exhibit similar properties are commonly referred to by chemists as groups, or families. There are a total of 18 groups on the periodic table. The halogens are all elements that are found in group 17 of the periodic table. The halogens include fluorine, chlorine, bromine, iodine, and astatine. All of these elements are considered to be reactive nonmetals.

DEFINITION OF HOMOLOGOUS SERIES
In organic chemistry, a homologous series is a series of compounds with the same functional group and similar chemical properties in which the members of the series differ by the number of repeating units they contain..



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