Question

Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

Answer 1

Answer:

1) Promethium is a chemical element with the symbol (Pm) and atomic number 61.

electronic configuration =Xe 4f5 6s2

2) Protactinium is a chemical element with the symbol (Pa) and atomic number 91.

electronic configuration =Rn 5f2 6d1 7s2

3) Mendelevium is a chemical element with the symbol (Md) and atomic number 101.

electronic configuration =Rn 5f13 7s2

4) Meitnerium is a chemical element with the symbol (Mt) and atomic number 109.

electronic configuration =[Rn] 5f14 6d7 7s2

Answer 2

Answer:

Frinds this is your answer