Sc is a 3d element. It has 21 protons and 21 electrons.
Scandium is a meta element. Atomic number of it is 21.
Sc is actually atomic number 21, there are 21 protons, 21 electrons, and usually 24 neutrons
Scandium (Sc) has an atomic number of 21, which means it has 21 electrons. Its electron configuration is [Ar] 3d¹ 4s². Therefore, Sc has one 3d electron.
21
Scandium, element 21
The atomic number of scandium (Sc) is 21. The atomic weight of Sc is 44.95591 grams per mole.
The first transition metal is scandium, Sc, with atomic number 21.
21 or older anywhere in the U.S.
approximately 12-21-09
57 miles taking this route:Take U.S. 17 SOUTH from Charleston to U.S. 21 SOUTH. Turn left.Take U.S. 21 SOUTH to Sea Brook.
21 protons, 21 electrons and 23 neutrons