How many protons neutrons and electrons are in radium 222?

Answer 1

Radon has 86 protons, 86 electrons.Rn-222 isotope has 136 (222 - 86 = 136) neutrons

Answer 2

The atomic number of radium is 88. So there are 88 protons and 88 electrons.

In Ra-222, there are 134 neutrons (222 - 88 = 134).

Answer 3

Radium's atomic number is 88. Thus, it has 88 protons. Therefore, 228Ra has 228 - 88 = 140 neutrons.

Answer 4

228Ra has 140 neutrons.