The atomic number of scandium (Sc) is 21. The atomic weight of Sc is 44.95591 grams per mole.
General InformationSymbol: Sc Atomic Number: 21 Atomic Weight: (Atomic Mass, Molar Mass) 44.955912 Group: 3 (scandium family) IIIA (Old IUPAC), IIIB (CAS) Period: 4 Block: d
This compound is made from Scandium and chlorine ions. Scandium is a metal while Chlorine is a non metal. So the metallic ion is the scandium(ii) ion.This is an ionic compound between scandium and chlorine. Scandium is the metal involved. The oxidation number of Sc is +2.
No, argon is not part of the group known as rare earth elements. Rare earth elements are a series of 15 elements known as the lanthanides, (atomic numbers 57 through 71 - lanthanum through lutetium) and include yttrium (atomic number 39) and scandium (atomic number 21). They fall under the category of metals. Argon is a gas.
Rhodium (Rh)
Scandium chloride (or scandium trichloride), ScCl3
The first transition metal is scandium, Sc, with atomic number 21.
Scandium is a meta element. Atomic mass of it is 45. Atomic number of it is 21.
Scandium is a meta element. Atomic number of it is 21.
Scandium is a meta element. Atomic number of it is 21.
Scandium 49 has 24 protons because it is scandium (which has an atomic number of 21) plus 28 neutrons.
The atomic number of scandium is 21. So it has 21 protons and 21 electrons. Number of neutrons depends on the isotope. Number of neutrons = Mass number - Atomic number Sc-45 isotope has 24 neutrons
Scandium's atomic number is 21. Therefore, neutral scandium has 21 protons and 21 electrons. Scandium's only stable isotope is 45Sc, which has 45 - 21 = 24 neutrons.
The density of scandium is 2.99 grams per cubic centimeter. This element is classified as a metal, and it has the atomic number of 21.
Scandium is a metal element. Atomic mass of it is 44.95.
The d suborbitals begin at period 4, but the d-sublevel is actually 3d. The first element is scandium, which has the atomic number of 21.
The modern name of ekaboron is Scandium. It's abbreviation is Sc and its atomic number is 44.
Scandium. Its atomic number is 21. It is the first d block element.