whatare the following group known as
i ) group 1
ii) group 17
iii)group 18
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Answer:
Explanation:
1 ) Group 1
Group 1 is called as Alkali Metals group
These metals are called alkali metals because they form alkalies ( i.e. strong bases capable of neutralizing acids) when they react with water .
It consists of :-
- Lithium ( Li )
- Sodium ( Na )
- Potassium ( K )
- Rubidium ( Rb )
- Cesium ( Cs )
- Francium ( Fr )
2 ) Group 17
Group 17 is called as Halogens group
Group 17 elements are called halogens because halogen is a Greek word which means 'salt producing'. They all are non-metals. They react with metals to form compounds called salts
It consists of :-
- Fluorine ( F )
- Chlorine ( Cl )
- Bromine ( Br )
- Iodine ( I )
- Astatine ( At )
3 ) Group 18
Group 18 is called as Noble Gas group
They were once called inert gases because they were thought to be completely inert—unable to form compounds. Because this configuration is extremely stable as well as symmetrical, the noble gases are very unreactive.
It consists of :-
- Helium ( He )
- Neon ( Ne )
- Argon ( Ar )
- Krypton ( Kr )
- Xenon ( Xe )
- Radon ( Rn )
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