All isotopes of radium have the same number of protons; the number of neutrons is different.
Radium has 88 protons and 138 neutrons.
88
Radium has 88 protons, 138 neutrons, and 88 electrons.
Atomic number of uranium: 92 (the same for all the isotopes) Atomic number of an element = number of protons = number of electrons Atomic mass of the isotopes of uranium: 234, 235, 236, 238, 239, 240, ...., etc. Atomoc mass - Atomic number = Number of neutrons
The number of protons of an atom is given by its atomic number. Checking the periodic table, we see that the atom with 88 protons is radium. The isotope of radium with 138 neutrons would thus be 226Ra.
Radon has 86 protons, 86 electrons.Rn-222 isotope has 136 (222 - 86 = 136) neutrons
An atom of radium has a nucleus containing 226 particles, which includes 88 protons and 138 neutrons. The number of protons determines the element's identity, while the total number of protons and neutrons gives the mass number of the isotope. Therefore, the nucleus of a radium atom specifically has 226 nucleons.
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass of an isotope - 88
Radium has an atomic number of 88, meaning it has 88 protons. The most common isotope of radium is radium-226, which has a mass number of 226. This mass number represents the total number of nucleons (protons and neutrons) in the nucleus, so radium-226 has 226 nucleons.
There are 88 protons/electrons in radium. There are 138 neutrons.
The number of neutrons is different for each isotope: Number of neutrons = Atomic mass of the isotope - 86 The isotope 222Rn, the most stable (half life = 3,8 days) radon isotope, has 136 neutrons.
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass - 88 The most stable and known isotope of radium, 226Ra, has 138 neutrons.