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प्रश्न
Name the gas used in:
Filling balloons
एक शब्द/वाक्यांश उत्तर
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उत्तर
Helium
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संबंधित प्रश्न
What are the following group known as?
Group 18
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Name the method by which alkali metals can be extracted.
How many electrons do inert gases have in their valence shells?
Name the gas used in:
Light bulbs
Give reason:
Alkali metals and halogens do not occur free in nature.
Write a short note on the following type of element –
alkali metals
Write a short note on the following type of element –
halogens
State the main helpful features of the long form of the periodic table.
State the following:
The group from the groups 1 [IA], 2 [IIA], 16 [VIA] and 7 [VIIA] whose elements are most electronegative.
