Actinium has 89 protons and electrons; the natural isotope 227Ac has 138 neutrons.
There are 2 valence electrons in Actinium.
4 protons, 4 electrons and 6 neutrons.
7 protons, 7 neutrons and 7 electrons
it has 44 electrons 57 neutrons and 44 protons
The phosphorus atom has 15 protons and electrons and 16 neutrons.
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.
Actinium has 89 protons and 138 neutrons (the natural isotope 227Ac).
There are 2 valence electrons in Actinium.
18 protons 18 electrons 22 neutrons
18 protons and electrons and 22 neutrons.
61 neutrons 10 electrons 46 protons
Neutrons: 58 Electrons: 45 Protons: 45
67 protons, 67 electrons and 98 neutrons
4 protons, 4 electrons and 5 neutrons
41 protons 41 electrons 52 neutrons
55 protons and electrons and 78 neutrons
There are 19 protons,20 neutrons, and 19 electrons.