Answer to Question #179581 in General Chemistry for daniel wagaye

Question

Write the names, groups, periods, valence electron and blocks of the elements that are represented by each of the following electron configurations respectively:

A. [Xe]6s2 4f145d106p6

B. 1s2 2s2 2p6 3s2 3p6 4s2 3d5

Answer 1

A.The element is Lead ;group 14,period 6, 4 valence electrons,

B. The element is Manganese ;Group 7,Period 4,7 valence electrons.