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Actinium is a radioactive element that emits alpha particles. It has 36 isotopes; none of them are stable. It is produced by the radioactive decay of uranium and other unstable elements in ores. It can also be made artificially. Actinium is a health hazard if ingested; it is deposited in the bones and liver, where it can cause bone cancer and other diseases. It is also a fire hazard.

how many electrons does actinium have?

The number of protons and electrons in an atom determines the properties of that atom. Neutral atoms have the same number of protons as electrons. Atoms with a single neutral proton are called neutral molecules or neutral compounds. They can form strong covalent bonds with other atoms or be bound to molecules that contain heavier atoms by weak intermolecular bonds. Neutral atoms are also able to form weak hydrogen bonds with other atoms. This type of bond is the smallest possible in a molecule.

Electrons are the permanent core particles of an atom that reside in specific orbits of the nucleus, the center of a chemical atom. They are influenced by the electric fields that emanate from the positive nuclear charge and the other (Z – 1) negative electrons in the nucleus. The number of electrons in an atomic nucleus determines the properties of the element and its compounds.

The number of electrons in an atom is determined by its Bohr model. Hence, it can be determined that actinium has seven orbits. As a result, it is found in the period 7 of the periodic table. The number of electrons in an atom also determines whether it lies in the s, p, d, or f block of the periodic table.