Unable to answer without knowing the specific isotope. However I will assume you mean actinium-227 as it is the only isotope with a halflife longer than a few days.
However this does not count the undeterminable number of virtual photons, muons, and gluons being exchanged by those electrons, protons, neutrons, and quarks to couple the electromagnetic, weak, and strong forces between them.
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.
Oxygen in oxides has an oxidation number of 2- so it will take 2 Actinium (III) ions and 3 oxygens to form this substance. Thus the formula will be Ac2O3
Hydrogen is a none metal element. atomic number of it is 1.
Actinium is a solid at room temperature.
No, actinium is not a metalloid. It is a radioactive metal element that belongs to the actinide series on the periodic table.
The mass number for the isotope 227Ac is 227.
There are 138 neutrons in actinium 89. Thank you for using WikiAnswers:)
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.
The element that has the closest mass to 89 is Yttrium(88.91).
For the isotope actinium-227 the mass is 227,027 752 1(26) g.
The atomic number for actinium is 89.
Actinium's atomic number is 89.
89 is the atomic number of Actinium.
it is 277
Actinium, with the chemical symbol Ac, is the chemical element with the atomic number 89.
The chemical symbol of actinium is Ac.The symbol of an isotope:- as superscript to the left of Ac is the atomic mass of the isotope- as subscript to the left of Ac is the atomic number 89
It would be actinium with 89 protons and a mass of 230.