The second series of transition element start with

Discuss the general properties of transition elements with reference to elements of 3d- series.

The atomic radii of the metals of the third (5d) series of transitions elements are virtually the same as those of the corresponding members of the second (4d) series. Explain.

Write the name and atomic number of the following elements (i) The first halogen (ii) The third alkali metal (iii) The fourth alkaline earth metals (iv) The sixth element of the second transition series (v) The second inner transition element (vi) The fifth noble gas.

Mention the names of the first member of each of first, second and third series of transition elements.

Which of the following element does not belong to 4d series of transition elements?

Which of the following element does not belong to 4d- series of transition elements ?