CBSE
Gujarat Board
Haryana Board
Class 10
Class 12
How many elements are placed in each period of the p-block?
What is the number of groups in: (i) p-block (ii) d-block?
(i) p-block: Six groups(ii) d-block: Ten groups.
To which block the element with outer electronic configuration 4s23d10 belongs?
What is the name given to the s-block elements?
These are called alkali elements.
How many elements are present in:(i) second period (ii) fourth period (iii) sixth period?