Beryllium-9 has 9 nucleons.
Radium has 88 protons.
There are 88 protons in a radium atom.
Radium typically has 138 neutrons.
The neutral radium atom has 88 electrons, the radium cation has 86 electrons.
There are A + Z nucleons in an element
Beryllium-9 has 9 nucleons.
238 nucleons in 238U.
The "11" refers, precisely, to the number of nucleons.
Radium has 88 protons.
Radium has 88 protons.
Radium has seven electron shells; the valence of radium is 2+.
There are 88 protons in a radium atom.
Radium has one valence electron.
Radium has two valence electrons.
The Radium Pool has 188 pages.
Radium typically has 138 neutrons.