Each isotope has a different number of neutrons.
Number of neutrons = Atomic Mass of the astatine isotope - 85
Astatine has 125 neutrons
Protons/Electrons: 85 Number of Neutrons: 125
As for all other elements: neutrons, protons and electrons.
Astatine has 85 protons.
Six electron shells
85
Astatine is an element with the symbol At.
The color of the element astatine is unknown.
Electrons per shell in astatine: 2, 8, 18, 32, 18, 7.
33
francium plus (+) Astatine *
The chemical symbol of astatine is At