Actinium has 2, 8, 18, 32, 18, 9, 2 electrons in each shell.
Actinium has three valence electrons.
The electrons in actinium are disposed on seven energy levels.
The number of neutrons is the difference between the atomic mass of an isotope and the atomic number. Actinium has a great number of isotopes, each with a different mass or number of neutrons.
There are 2 valence electrons in Actinium.
The electrons in actinium are disposed on seven energy levels.
The electrons in actinium are disposed on seven energy levels.
Actinium has 89 protons and electrons; the natural isotope 227Ac has 138 neutrons.
For actinium, which has an atomic number of 89, the electron configuration is 2-8-18-32-18-9-2. This means there are 2 electrons in the first shell, 8 in the second shell, 18 in the third shell, 32 in the fourth shell, 18 in the fifth shell, and 9 in the sixth shell.
Krypton has 8 valence electrons.
Actinium has seven electron shells.
All the isotopes of actinium has 89 protons.
Actinium has seven electron shells.