Find the number of unpaired electrons in the atom of the element having atomic number 16 .

The number of unpaired electrons in P-atom is

What is the number of valence electrons in the atoms of an element having atomic number 13 ? Name the valence shell of this atom.

What is the number of valence electrons in the atom of an element A having atomic number 17 ? Name the valence shell of this atom.

What is the number of valence electrons in the atom of an element A having atomic number 20? Name the valence shell of this atom.

The number of unpaired electrons in carbon atom is -

The number of unpaired electrons in the scandium atom is

The number of unpaired electrons in the scandium atom is