6
You mean this form of the electron configuration. [Xe] 4f^14 6s^2 5d^10 6p^3 This is Bismuth and it is in the 5A nitrogen group and it has 5 valance electrons and needs three electrons to complete its valance octet.
There are 27 valance electrons.
2 valance electrons
Iodine has 7 valance electrons
Bismuth is in group 15 and has 5 valence electrons
49
Five electrons in the outermost shell of Bismuth (group 15, same as 'parental' Nitrogen)
Bismuth (Bi) has 83 electrons, with a configuration of 2-8-18-32-18-5. There are only 5 6p electrons in bismuth.
bismuth has 83 protons and electrons.Bi-209 isotope has 126 neutrons.
They have different numbers of valance electrons
6 valence electrons
6 valence electrons