Astatine has 85 protons.
82 protons
Technetium has 43 protons.
3 neutrons and 3protrons
Six electron shells
85
there are six protrons
How many protrons and neutrons does silicon have in the nucleus?
Zinc has 30 protrons, 36 neutrons, and 66 electrons
there are 12
57
99
Astatine has 125 neutrons
there are 11 neutrons.
8
it has 8 protons
it has 40
82 protons