In sodium atom on `3s` electron the screening is due to:

A sodium atom contains 11 electrons. What is the atomic number of sodium ?

Electron in the atom are held due to

In boron atom, shielding of the last electron is due to

The number of s’ electrons in sodium atom is

For sodium atom the number of electrons with m=0 will be

The atomic number of sodium is 11. How many protons are there in the nucleus of sodium atom ? How manu electrons does an atom of sodium contain ? How many electrons and protons does an ion of sodium which has a charge of +1 contain ?

The gyromagnetic ratio of an electron in sodium atom is