Atomic weight of scandium is 44,955 908(5) a.m.u.
44.955
The relative atomic masses are:calcium: 40.078 scandium: 44.956 titanium: 47.867
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
The first transition metal is scandium, Sc, with atomic number 21.
Scandium is the smallest d-block element which in the past also made it the smallest transition metal. However, using the accepted modern definition of a transition metal: 'a transition metal is one which forms one or more stable ions which have incompletely filled d orbitals' scandium would not count as a transition metal, as it always forms 3+ ions with no d-electrons. Using this definition, the smallest transition metal would therefore be titanium.
The atomic mass of scandium is 44.9559 AMU (atomic mass unit)
Scandium is a metal element. Atomic mass of it is 44.95.
Scandium is a meta element. Atomic mass of it is 45. Atomic number of it is 21.
Atomic mass of scandium: 44,955 912
Scandium is a metal element. Atomic mass of it is 44.95.
The relative atomic masses are:calcium: 40.078 scandium: 44.956 titanium: 47.867
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
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.
1. Find the molar mass of scandium chloride (ScCl3) 2. Then divide the atomic mass of scandium by the molar mass of scandium chloride. 3. Multiply by 100 to get the percentage. ** Do the same thing for chloride and dont forget to multiply the molar mass of chloride by 3