Question

name the halogens In Morden periodic table​

Answer 1

HEYA!

MODERN PERIODIC TABLE :

It contains 7 periods and 18 groups.

IA group : Alkali metals
IIA group : Alkali earth metals
IIIA group : Boron family
IVA group : Carbon family
VA group : Nitrogen family (Pnictogens)
VIA group : Oxygen family (Chalcogens)
VIIA group : Halogens
VIIIA group : Noble gases

=> So, the VIIA group elements are called HALOGENS. They are :-

• Fluorine(F)
• Chlorine(Cl)
• Bromine(Br)
• Iodine(I)
• Astatine(At)


=> Halogen means salt former.
=> Compounds containing halogens are salts.
=> Halogens are non metals.
=> They have 7 electrons in their valency shell.
=> Their oxidation number = (-1)
=> They have relatively low melting and boiling points.
=> At room temperature,
★ Fluorine and Chlorine are gases.
★ Bromine is liquid.
★ Iodine is solid.
=> They are electronegative.



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