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प्रश्न
Select the correct answer from the options given below.
The most reactive halogen from group 17.
विकल्प
chlorine
fluorine
bromine
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उत्तर
fluorine
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संबंधित प्रश्न
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What is meant in the periodic table by a group?
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.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Filling balloons
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 –
noble gases
State the following:
The group whose elements are unreactive or inert.
