Advertisements
Advertisements
प्रश्न
‘The periodic table contains elements methodically grouped together’.
Advertisements
उत्तर
The periodic table contains elements methodically grouped together like [I-A] alkali group [II-A] alkali earth group, halogens [17 OR 7-B] group, normal elements. Transition elements, noble gases [O-group], etc. If we know the properties of one member of a family, we know the properties of other members of the same family will be similar.
APPEARS IN
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.
Noble gas having electronic configuration: 2, 8, 8.
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.
Name the first three alkaline earth metals.
How do alkaline earth metals occur in nature?
Write a short note on the following type of element –
alkaline earth metals
State the main helpful features of the long form of the periodic table.
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.
