Question

Define halogens. Why are they called very active non-metals?

Answer 1

Answer:

The halogens are a group in the periodic table consisting of five chemically related elements: fluorine, chlorine, bromine, iodine (I), and astatine.

They are in Group 17 of the periodic table (on the opposite side to metals), requiring one electron to complete their octive usually forming a negative ion in the process.

Answer 2

Answer:

Any elements occupying group 17 in the modern periodic table such as fluorine, chlorine, bromine, iodine and astatine. They are non-metal elements that are strongly acidic compound with hydrogen from which simple salt can be made.

Halogens are called as very active non-metal due to their electronic configuration and number of valence electrons.

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