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प्रश्न
Name the gas used in:
Bright colour advertising light works
उत्तर
Neon
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संबंधित प्रश्न
What is meant in the periodic table by a group?
Name two elements of each group.
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Name the method by which alkali metals can be extracted.
Give reason:
Alkali metals and halogens do not occur free in nature.
‘The periodic table contains elements methodically grouped together’.
Give a reason for the following:
Noble gases do not form compounds readily.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
State the following:
The group whose elements are unreactive or inert.
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
