Kerala Board Solutions for Chapter: Periodic Table and Electronic Configuration, Exercise 1: Exercise

Write the sub-shell electronic configuration of beryllium and find the block to which it belongs to.

Write the sub-shell electronic configuration of iron and find the block to which it belongs to.

Write the sub-shell electronic configuration of argon and find the block to which it belongs to.

The outermost subshell wise electronic configuration of an element Y (Symbol is not real) is $3{\mathrm{s}}^{2}3{\mathrm{p}}^4$. To which period and group does this element belongs to?

The outermost subshell wise electronic configuration of an element Y (Symbol is not real) is $3{\mathrm{s}}^{2}3{\mathrm{p}}^4$. Write down the outermost subshell electronic configuration of the element coming just below it in the same group?

Find out examples of elements in such different states with the help of the periodic tables?

P block elements usually show higher ionisation energy than the s block elements. Which element has the highest ionisation energy in each period? Think on the basis of electronic configuration. 

The elements having the highest electronegativity is in the p block. Find its name and position?