Sc is a 3d element. It has 21 protons and 21 electrons.
Sc is actually atomic number 21, there are 21 protons, 21 electrons, and usually 24 neutrons
Scandium, element 21
21
The first transition metal is scandium, Sc, with atomic number 21.
The atomic number of scandium (Sc) is 21. The atomic weight of Sc is 44.95591 grams per mole.
approximately 12-21-09
21 or older anywhere in the U.S.
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.
Scandium is a meta element. Atomic number of it is 21.
21 protons, 21 electrons and 23 neutrons
21 for hand gun , 18 for long gun