Question

what is the electronic configuration of "Rb"​

Answer 1

Explanation:

Rubidium is an element with atomic number 37 and thus contain 37 electrons. It is a s block element as the last electron enters the s orbital. The nearest noble gas is Krypton with 36 electrons.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration in terms of noble gs energies and thus the electronic configuration in terms of noble gs configuration is:

Rb : 37 : [Kr] 4s^1

Answer 2

Answer:

➡1S2 2S2 2P6 3S2 3P6 3D10 4S2 4P6 5S1 IS THE ELECTRONIC CONFIGURATION OF RB