Zinc has 30 protons. You can tell this by looking at its atomic number.
82 protons
Technetium has 43 protons.
Astatine has 85 protons.
Lithium is a metal element. There are 3 electrons in a single atom.
Sodium does.
Zinc has 30 protrons, 36 neutrons, and 66 electrons
there are six protrons
there are 12
57
99
82 protons
8
there are 11 neutrons.
it has 8 protons
it has 40
Copper has 29 Protons
Technetium has 43 protons.