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About number of electrons in actinium
The element actinium is a radioactive metal that glows with blue light when it is exposed to the sun. Its name comes from the Greek word aktis, meaning “ray.”
This metal is found in trace quantities in the Earth’s crust and has only one stable isotope, 227Ac, which decays by beta emission to produce thorium-227.
It belongs to the group of elements called actinides, which have similar chemical behavior to lanthanum and lawrencium. They are characterized by the gradual filling of the 5f subshell.
Unlike lanthanum, however, actinium has no electrons in its 5f subshell; it is therefore classified as a d-block element, which fits better with the elements of group three.
Electron configurations of all elements determine their valency, ionic, and electronic properties. They also influence the behavior of molecules and how they interact with each other.
Ionization energies are a measure of how likely a neutral atom is to gain an electron. They are measured in kJ/mole.
The specific heat of fusion of actinium is 14 kJ/mole, and the latent heat of vaporization is 400 kJ/mole. These properties are referred to as specific heats because they relate the temperature change of an object under certain conditions to the amount of energy added by heat transfer.
The atomic number is the number of protons in an element’s nucleus, which is determined by its position in the periodic table. It increases from left to right. It is the most important number to know when learning about chemistry and the environment.