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प्रश्न
What are the following group known as?
Group 1
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उत्तर
Group 1 is known as the alkali metals.
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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 happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
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.
Name the first three alkaline earth metals.
Give reason:
Inert gases do not form compounds.
Write a short note on the following type of element –
alkaline earth metals
‘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 from the groups 1 [IA], 2 [IIA], 16 [VIA] and 7 [VIIA] whose elements are most electronegative.
