Answer:
(a) Rb
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^65s^1[/tex]
(b) Ge
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^2[/tex]
(c) Ar
[tex]1s^22s^22p^63s^23p^6[/tex]
Explanation:
(a) Rb
Atomic number = 37
The electronic configuration is -
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^65s^1[/tex]
(b) Ge
Atomic number = 32
The electronic configuration is -
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^2[/tex]
(c) Ar
Atomic number- 18
The electronic configuration is -
[tex]1s^22s^22p^63s^23p^6[/tex]
