Question

The electronic configuration of. One element is 1s2 2s2 2p6 3s2 3p6 3d10 4s1 what is same group which is recently discovered

Answer 1

Answer:

Explanation:

The electron configuration of an atom shows the number of electrons in each sublevel in each energy level of the ground state atom.  

Here, 1s  

2

2s  

2

2p  

6

3s  

2

3p  

2

3d  

5

4s  

1

 is ground state electronic configuration of Cr.

Note: To write the electronic configuration a more convenient way is shown in figure below.