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La has atomic number 57.Ac has atomic number 89.They both are first elements of lanthanoids and actinoids group respectively.

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What is Ac in the periodic table?

Actinium (Ac) is a chemical element with the atomic number 89, located in the actinide series of the periodic table. It is a radioactive metal that is primarily used in research and some specialized industrial applications.


What is the eighty ninth element in the periodic table of the elements?

The eighty ninth element in the periodic table is Actinium, with the symbol Ac and atomic number 89. It is a radioactive element that is part of the actinide series.


Where are the lathanides and actinides found on the periodic table?

The lanthanides and actinides are located in the f-block of the periodic table. The lanthanides are found in the sixth period, spanning from cerium (Ce, atomic number 58) to lutetium (Lu, atomic number 71). The actinides are in the seventh period, ranging from actinium (Ac, atomic number 89) to lawrencium (Lr, atomic number 103). Both series are typically displayed separately at the bottom of the periodic table to maintain its overall structure.


What are the 14 elements begin with actinium on the periodic table called?

Actinoids family contain: Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lw.


What are the correct members of group 3 of the periodic table Sc Y La Ac or rather Sc Y Lu Lr?

The correct members of group 3 of the periodic table are Scandium (Sc), Yttrium (Y), Lutetium (Lu), and Lawrencium (Lr). Actinium (Ac) is not a member of group 3, while Lanthanum (La) is part of the lanthanide series and not considered a member of group 3.

Related Questions

What is Ac in the periodic table?

Actinium (Ac) is a chemical element with the atomic number 89, located in the actinide series of the periodic table. It is a radioactive metal that is primarily used in research and some specialized industrial applications.


What is the eighty ninth element in the periodic table of the elements?

The eighty ninth element in the periodic table is Actinium, with the symbol Ac and atomic number 89. It is a radioactive element that is part of the actinide series.


What is Ac on periodic table?

Actinium


What is element 89 on the Periodic Table?

Actinium (Ac) Atomic Number: 89 Atomic Weight: 227 Protons: 89 Electrons: 89 Neutrons: 138 -----(227-89=138)


Where are the lathanides and actinides found on the periodic table?

The lanthanides and actinides are located in the f-block of the periodic table. The lanthanides are found in the sixth period, spanning from cerium (Ce, atomic number 58) to lutetium (Lu, atomic number 71). The actinides are in the seventh period, ranging from actinium (Ac, atomic number 89) to lawrencium (Lr, atomic number 103). Both series are typically displayed separately at the bottom of the periodic table to maintain its overall structure.


What period is element 89 on the periodic table?

Actinium (Ac) Atomic Number: 89 Atomic Weight: 227 Protons: 89 Electrons: 89 Neutrons: 138 -----(227-89=138)


What is the name of the elements with atomic numbers 90 through 103?

The elements are called Actinides. They are placed at the bottom of periodic table. These elements have different properties.These elements are in the f group of the periodic table. Elements from Ac-Lr belong to this group. These are called Actinides.


What is the radioactive element in period 5?

The radioactive element in period 5 of the periodic table is Actinium (Ac). It is a radioactive metal with atomic number 89.


What is the first element of the actinides?

The first element in the actinide series is actinium , a chemical element in the periodic table that has the symbol Ac and atomic number 89.The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table , with atomic numbers 89-103.The actinides get their name from the first element in the series , actinium.


What family does Curium belong to on the periodic table?

Curium belongs to the actinide family on the periodic table. Actinides are located in the f-block of the periodic table and are known for their radioactive properties. Curium is a synthetic element and is named after the scientist Marie Curie.


What element on the periodic table is known as AA?

There is no element with the abbreviation of "Aa" but here is a list of all the abbreviations that start with "A" in case you meant something else: Al - Aluminum Ar - Argon As - Arsenic Ag - Silver Au - Gold At - Astatine Ac - Actinium Am - Americium


What are the largest 6 atoms in the periodic table?

These elements are Cs, Rb, K, La, Ac, Po, Tl.

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