What would you like to do?
Answer The same as its atomic number.
Look at the atomic number on the periodic table
Radon has 86 protons in it's nucleus.
Atomic number is determined by the number of protons, which equals the number of electrons. The number of neutrons, however, may vary, and it is the sum of the masses of the …protons and neutrons that determines atomic mass.
Hydrogen, with only one proton.
Hydrogen has one proton in its nucleus.
Helium, number two on the periodic table of elements. Nothing else has two protons, for to remove a proton or add a proton is to change the element.
Potassium - (K) Potassium's atomic number is 19, which is also the number of protons it has.
the element with 46 protons in its nucleus is called Palladium and the symbol is Pd.
Barium (Ba) has an atomic number 56 which means that it haves 56 protons in it's nucleus.
i think it is Sulfir
Selenium (symbol Se).
Gold is the element with 79 protons.
Number of protons or the atomic number of an atom determines what is the element.