To which block does the element with configuration `3d^(10) 4s^2` belongs

To which block does the element with atomic number 50 belong?

To which blocks do the elements with following atomic number belong ? 7,13,25,42

Write the atomic number at an element with outer configuration. 3d^(3)

The dipositive meal ion has the outermost configuration 3d^(10)4s^(0) .The name of the element is:

Write the atomic number at an element with outer configuration. 4s^(1)

What are d-block elements ?

""^(36)Kr has the electronic configuration as [Ar]3d^(10)4s^(2)4p^(6) . The next 37th electron will go into the subshell

Which elements has The electronic configuration 2,8,2 ?