Actinium is the eighty-ninth element in the periodic table. A periodic table contains 118 elements distributed in 7 rows and 18 columns. The rows are known as periods and the columns are the groups of the periodic table. The elements of the periodic table are arranged according to their atomic number.
Basic elemental properties of Actinium
There are 118 different elements in the periodic table but there are some basic elemental properties of each. In a periodic table, elements with basic elemental properties are grouped together. Basic elemental properties of Actinium are:
Atomic Symbol of Actinium
Every element in the periodic table has its atomic symbol or chemical symbol for representation. The atomic symbol of Actinium is “Ac”
Atomic Number of Actinium
Elements in the periodic table are arranged in groups and periods on the basis of their atomic number.
Atomic number is the number of protons present in the nucleus of an atom. The atomic number of Actinium is 89. This shows Actinium is the eighty-ninth element of the periodic table.
Short Electronic Configuration of Actinium
Short Electronic Configuration of Actinium is [Rn]7s2 ,6d 1
Block of Actinium in Periodic Table
There are four blocks (s, p, d, f) in the periodic table. Actinium belongs to the f-block of the periodic table. F block is the fourth block in the periodic table.
Period of Actinium in Periodic Table
Periodic table is arranged in periods and groups. The rows going across left to right are periods and Actinium is placed in the seventh period. Elements that are present in a period share common properties .
Atomic Mass of Actinium
Atomic mass is the mass of an atom and the atomic mass of Actinium is 227 u. If we round off the atomic mass of Actinium, we get 227 u.
Thermodynamic properties of Actinium
Thermodynamic properties are the characteristic features of a system, capable of specifying the system's state. The thermodynamic properties of an element include chemical, physical and thermal properties. The thermodynamic properties of Actinium are:
Phase at STP
Phase at STP is the state in which an element is present. The stp phase of Actinium is “Solid”.
Melting Point of Actinium
Melting point is a temperature at which an element of substance changes its state from solid to liquid. The melting point of Actinium gas is 1050 °C.
Boiling Point of Actinium
A boiling point is a temperature at which an element of a substance starts turning into vapors. The boiling point of Actinium gas is 3200 °C.
Molar Heat of Fusion of Actinium
Molar Heat of Fusion is the energy required to melt each mole of substance. The molar heat of fusion of Actinium is 14 kJ/mol.
Molar heat of Vaporization
The Molar heat of vaporization is the heat absorbed by the one specific mole of a substance. The molar heat of vaporization of Actinium gas is 400 kJ/mol.
Specific heat at STP
The specific heat of Actinium at STP is 120 J(kgK).
These are some of the main thermodynamic properties of Actinium. Let’s find out all the material properties of Actinium.
Material properties
We have discussed basic elemental properties and thermodynamic properties of Actinium gas. Besides these, there are many material properties of Actinium as well. Some of the material properties include density, molar volume, refractive index and thermal conductivity.
Density of Actinium
The density of Actinium element is 10.07 g/cm3
Molar Volume of Actinium
The molar volume of Actinium is 22.5cm3/mol
Thermal Conductivity of Actinium
The thermal conductivity of Actinium is 12 W/(mK)
These are the main material properties of Actinium.
Electromagnetic properties of Actinium
When there is any emission or absorption of electromagnetic radiations, a martial responds to these changes. All elements of a periodic table have electromagnetic properties. Some of the main electromagnetic properties of Actinium gas include magnetic types, magnetic volume, mass magnetic susceptibility and color.
Electric type of Actinium
The magnetic type Actinium refers to the fact that it is a conductor.
Color of Actinium Gas
The color of Actinium gas is silver.
These are some of the main electromagnetic properties of Actinium gas.
Reactivity of Actinium
Valency of Actinium
The valency of a Actinium element is a number that represents the ability of an atom to combine with other atoms. The valency of Actinium is 3.
Electronegativity of Actinium
Electronegativity of Actinium is the tendency of its atom participating in a covalent bond to attract the bonding electrons. Actinium has 1.1 electronegativity.
First ionization energy of Actinium
It is the energy to remove the outermost electron from the neutral atom in the gas phase. The first ionization energy of Actinium is 499 kJ/mol
Atomic properties
The atomic properties of Actinium have term symbol, atomic radius, covalent radius, van der waals radius.
Term Symbol of Actinium
The term symbol specifies the electronic state of an atom. The term symbol of Actinium atom is 3 D3/2
Atomic Radius of Actinium
The total distance from an atom's nucleus to the outermost orbital of an electron is its atomic radius. The atomic radius of Actinium is 165 pm.
Covalent Radius of Actinium
Covalent radius is the measurement of an atom's size that forms a covalent bond. The covalent radius of Actinium is 215 pm.
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Abundances of Actinium
It is the measure that tells us about the percentage of which it is present.
Abundance of Actinium in the solar system
The abundance of Actinium in the solar system is 0 mass %
Human Abundances of Actinium
The human abundances of Actinium is 0 mol %
Solar Molar Abundances of Actinium
The solar molar abundances of Actinium is 0 mol %
Human Molar Abundances of Actinium
The crust molar abundances of Actinium is 0 mol %
Nuclear properties of Actinium
Half life of Actinium
Half life is the time for the radioactivity of a specified isotope to fall to half its original value. The half Life of Actinium is 21.787 yr.
Specific radioactivity of Actinium
The specific radioactivity of Actinium are 2.676 T Bq/g
Decay Mode of Actinium
The decay mode of Actinium is beta decay
Unstable isotopes of Actinium
The unstable isotopes of Actinium is 227 Ac (21.772 yr)
Neutron Cross Section of Actinium
The neutron cross section of Actinium is 880 b
Identifiers of Actinium
CAS Number of Actinium
The CAS number of Actinium is 7440-34-8
PubChem CID number of Actinium
The PubChem CID number of Actinium is 23965
Online Calculators
There are free online calculators on this website which you can use for accurate calculations. These tools are:
- Chemical Equation Balancer
- Oxidation Number Calculator
- Redox Reaction Calculator
- Percent Composition Calculator
- Percent Yield Calculator
- Theoretical Yield Calculator
- Molecular Weight Calculator
- Titration Calculator
- Atomic Mass Calculator
