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प्रश्न
State the characteristics which remain similar in moving down in a group of the periodic table.
उत्तर
Character that remains similar is physical and chemical properties, i.e. The alkali metal (Group 1 - A) are very reactive Li < Na < K, Rb < Cs reactivity increases. Halogen atoms are also very reactive.
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संबंधित प्रश्न
What are the following group known as?
Group 1
Name and state the following with reference to the elements of the first three periods of the periodic table.
Group whose elements have zero valencies.
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Write the reactions of the first three alkaline earth metals with dilute hydrochloric acid.
Name the gas used in:
Filling balloons
Name the gas used in:
Light bulbs
Write a short note on the following type of element –
alkali metals
Write a short note on the following type of element –
alkaline earth metals
Write a short note on the following type of element –
halogens
Give a reason for the following:
Noble gases do not form compounds readily.
