Radium has several isotopes, but the most common one is radium-226. This isotope has an atomic number of 88, indicating it has 88 protons. Since the mass number of radium-226 is 226, it contains a total of 226 nucleons, which includes both protons and neutrons. Therefore, radium-226 has 138 neutrons (226 - 88 = 138).
This is the isotope radium-226.
Radium-226 does not decay by beta decay. It decays by alpha decay to radon-222.
The atomic mass of radium is approximately 226 atomic mass units.
Radium-226 has 88 protons and 138 neutrons in its nucleus. It belongs to the alkaline earth metal group in the periodic table. Radium-226 is a radioactive element that decays into radon-222 through alpha decay.
Radium has several isotopes, but the most common one is radium-226. This isotope has an atomic number of 88, indicating it has 88 protons. Since the mass number of radium-226 is 226, it contains a total of 226 nucleons, which includes both protons and neutrons. Therefore, radium-226 has 138 neutrons (226 - 88 = 138).
Radium-226--------------------Radon-222 + alpha
When radium-226 decays to form radon-222, the radium nucleus emits a alpha particle.
radium-226 isa radioactive element and has the form of a pellet or solution housed with in a ceramic outer housing
Radium 226--------alpha particle-------- Radon 222
The most stable isotope of radium - 226Ra - has the atomic mass 226,025 409 8 (25).
This is the isotope radium-226.
Radium-226 does not decay by beta decay. It decays by alpha decay to radon-222.
The atomic mass of radium is approximately 226 atomic mass units.
1.875g
Radium-226 has 88 protons and 138 neutrons in its nucleus. It belongs to the alkaline earth metal group in the periodic table. Radium-226 is a radioactive element that decays into radon-222 through alpha decay.
The density of radium at about room temperature is 5.5  g·cm−3. That's 5.5 grams per cubic centimeter, or 5.5 grams per milliliter. A link to the Wikipedia article on radium is provided.