The electronic configuration of an atom is as follows: What is the value of principal quantum numbers of two electrons in the first box ?

Electronic configuration of Sodium atom is

What is meant by principal quantum number?

The electronic configuration of an atom is as follows 1s^(2) 2s^(2) 2p^(2) a) Which element's atom is it ? b) What is the valence shell ? c) When excited what could be the number of lone / single electrons in this atom ? d) What is the value of principal quantum numbers of two electrons in the first box ?

The quantum numbers of 2p electron are:

The electronic configuration of an atom is as follows: 2 8 7. Which element's atom is it ?

What is the use of quantum numbers ?What is electronic configuration ?

The electrons configuration of atom A is 2,8,6 What is the atomic number of element A ?

The electronic configuration of the first artifical element………

Sum of spin quantum number values of all the electrons in Gd(z=64) is

The set of quantum numbers not applicable to an electron is