The nucleus of an atom has 5 protons and 6 neutrons.(a) the number of valence electrons,per atom of this element?

The nucleus of an atom has 5 protons and 6 neutrons.(a) the number of

1.	The nucleus of an atom has 5 protons and 6 neutrons.(a) the number of valence electrons,per atom of this element?
Answer» 's CLEAR...........