0
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.
- 227 protons and neutrons each composed of 3 quarks, total 681 quarks
- 89 electrons
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.
Wiki User
∙ 8y ago
Wiki User
∙ 12y agoThe mass number of actinium is 227 (for the isotope 227Ac).
Add your answer:
Earn +20 pts
How many neutrons in actinium?
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.
What is unique about actinium?
Actinium is a metal, soft, radioactive, unstable, very rare, expensive, has only some applications, atomic number 89, actinoids family. But only the atomic number is unique !
What is the molecular formula for Actinium(III) oxide?
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
Is actinium metalloid?
Actinium is a metal.
Is actinium poisonos?
yes,actinium is poisonos.
What is the mass number for actinium the element?
The mass number for the isotope 227Ac is 227.
How many neutrons in actinium?
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.
What is the mass of one mole in actinium?
For the isotope actinium-227 the mass is 227,027 752 1(26) g.
What is the atomic number for actinium?
The atomic number for actinium is 89.
What is atomic number of Actinium?
89 is the atomic number of Actinium.
What is actinium's atomic number?
Actinium's atomic number is 89.
What is the atomic mass of actinium?
it is 277
What is the isotope symbol for actinium?
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
Protactinium with 91 protons and a mass of 234 undergoes alpha decay and becomes what with an atomic number of what and an atomic mass of what?
It would be actinium with 89 protons and a mass of 230.
What is the atomic number of actinium?
Actinium, with the chemical symbol Ac, is the chemical element with the atomic number 89.
How may neutrons are in actinium?
Each isotope has a different number of neutrons; Ac-227 has 138 neutrons.Number of neutrons = Mass number of an isotope - Atomic number of the element
What is actinium in the periodic table?
Actinium is a member of the actinoids family with the atomic number 89.
