89
Ac
Actinium
227,0 u
Actinium
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Chu kỳ
7
Nhóm
—
Khối
f-khối
Pha (STP)
Solid
Actinium is a radioactive element that glows blue in the dark. It is the first element in the actinide series and is used in radiation therapy research.
Thêm Actinide
Frequently Asked Questions
What is Actinium?
Actinium (Ac) is a chemical element with atomic number 89. It is a solid at standard temperature and pressure, classified as a actinide.
What are the key properties of Actinium?
Actinium has an atomic mass of 227.0 u.
What is the electron configuration of Actinium?
The electron configuration of Actinium is [Rn] 6d1 7s2. It is in the f-block of the periodic table.
What is the electronegativity of Actinium?
Actinium has an electronegativity of 1.1 on the Pauling scale.