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What is lanthanum and actinium?
Lanthanum (La) and actinium (Ac) are two chemical elements, solid metals.
The element lanthanum is in what section on the periodic table of elements?
The element Lanthanum (La) is a transition metal and the first of the 'Lanthanides'.
What is 'la' in the periodic table of elements?
"La" in the periodic table stands for the element Lanthanum, which is a rare earth metal. It has an atomic number of 57 and is commonly used in the production of camera lenses, catalysts, and high-strength steel alloys.
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.
Can you spell chocolate from the periodic table?
(C)(H)(O)(C)(O)(La)(Te) Carbon, hydrogen, oxygen, carbon, oxygen, lanthanum, tellurium
Is the correct electron configuration for La (lanthanum) A. Kr6s25d1 B. Rn6s25d1 C. Cs6s25d1 D. Xe6s25d1?
B. Rn6s25d1. Lanthanum (La) has an atomic number of 57, so the electron configuration would be [Xe] 6s25d1. The noble gas right before La on the periodic table is Radon (Rn), hence the correct electron configuration for lanthanum is Rn6s25d1.
Why lagd and lu exhibt only 3 oxidation state?
Lanthanum (La) and lutetium (Lu) exhibit mostly the +3 oxidation state due to the presence of a stable electron configuration when they lose three electrons. Other oxidation states for these elements are less common due to higher ionization energies needed to change their electron configuration.
In which period and group does an electron first appear in an f orbital?
An electron first appears in an f orbital in the period 6 and group 3 of the periodic table. This is when the f sublevel starts to fill in elements such as lanthanum (La), which has a electron configuration [Xe] 5d1 6s2.
What is the electron configuration for La lanthanum?
[Xe] 6s25d1
What is the atomic number of the first element to start filling an f sub-level?
The element cerium has a single electron in the 4f orbital. Its electron configuration is [Xe] 4f1 5d1 6s2.
What ion s formed by lanthanum?
The cation of lanthanum is La(3+).
How do you valence electrons for La?
the valence electron of La is 3. because, La belongs to group IIIb and it is found in the outermost shell of the atom.
What is the chemical formula for lanthanum nitrate?
The chemical formula for lanthanum nitrate is La(NO3)3.
What is the formula for lanthanum III iodate?
The chemical formula for lanthanum III iodate is La(IO3)3. This compound is composed of one lanthanum atom bonded to three iodate ions.
What is lanthanum and actinium?
Lanthanum (La) and actinium (Ac) are two chemical elements, solid metals.
What is the atomic number of lanthanum?
Lanthanum, with the chemical symbol La, is the chemical element with the atomic number 57.
What is the ionic charge of La?
Lanthanum La is usally +3 charge.
