Question

Which of the following is true about halogens? Group of answer choices
they have seven valence electrons
they have two valence electrons
they have one valence electron
they have eight valence electrons

Answer 1

Answer:they have one valence electron

Explanation:halogens are in group seven of the periodi table and they have seven electrons in their outermost shell thus need one electron to complete their octet condition. Thus goes into combination to accept one electrons from another element and that is their combining power which is their valency.

Answer 2

The halogens have seven valence electrons.  

• In the periodic table, the elements present in group 7A are known as halogens.  

• These are fluorine, chlorine, bromine, iodine, and astatine.  

• The halogen term means salt former.  

• The major characteristic of halogens is that they have seven valence electrons in their higher energy orbitals.  

• They are one electron behind in forming a full octet, so these elements would seem to produce anions exhibiting -1 charges and are known as halides.

Thus, halogens having seven valence electrons is the right statement.

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