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प्रश्न
What is meant in the periodic table by a group?
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उत्तर
Vertical columns in a periodic table that have the same number of valence electrons and similar chemical properties are called a group.
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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 are the following group known as?
Group 1
What are the following group known as?
Group 18
How many electrons do inert gases have in their valence shells?
State the characteristics which remain similar in moving down in a group of the periodic table.
Write a short note on the following type of element –
alkali metals
Write a short note on the following type of element –
noble gases
‘The periodic table contains elements methodically grouped together’.
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
State the following:
The group whose elements are unreactive or inert.
