Advertisements
Advertisements
प्रश्न
How do alkaline earth metals occur in nature?
Advertisements
उत्तर
Alkaline earth metals occur in nature in the combined state and not in the free state as they are very reactive.
APPEARS IN
संबंधित प्रश्न
What are the following group known as?
Group 18
Name two elements of each group.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas with duplet arrangement of electrons.
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Give reason:
Alkali metals and halogens do not occur free in nature.
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
State the main helpful features of the long form of the periodic table.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
