Advertisements
Advertisements
प्रश्न
What are the following group known as?
Group 1
Advertisements
उत्तर
Group 1 is known as the alkali metals.
APPEARS IN
संबंधित प्रश्न
What is meant in the periodic table by a group?
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.
Noble gas with duplet arrangement of electrons.
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.
How many electrons do inert gases have in their valence shells?
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Light bulbs
Give reason:
Inert gases do not form compounds.
Write a short note on the following type of element –
halogens
Give a reason for the following:
Noble gases do not form compounds readily.
