Valence electrons of all elements

How many valence electrons does niobium(Nb) have?

How many valence electrons does zirconium(Zr) have?

How many valence electrons does yttrium(Y) have?

How many valence electrons does strontium(Sr) have?

How many valence electrons does rubidium(Rb) have?

How many valence electrons does krypton(Kr) have?

How many valence electrons does bromine(Br) have?

How many valence electrons does selenium(Se) have?

How many valence electrons does arsenic(As) have?

How many valence electrons does germanium(Ge) have?