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Question
Name the gas used in:
Filling balloons
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Solution
Helium
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RELATED QUESTIONS
Name two elements of each group.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas having electronic configuration: 2, 8, 8.
How do alkaline earth metals occur in nature?
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Give reason:
Alkali metals are kept in an inert solvent.
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
Write a short note on the following type of element –
alkaline earth metals
Write a short note on the following type of element –
halogens
Write a short note on the following type of element –
noble gases
Give a reason for the following:
Noble gases do not form compounds readily.
