Since scandium scandium 's atomic number is 21 21 , Sc Sc has 21 21 protons. 21 21 protons.

Number of Protons/Electrons: 21. Number of Neutrons: 24. Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 2.989 g/cm3. Color ...

Scandium is the 21st element of the periodic table so its atomic number is 21. Scandium has twenty-one protons, twenty-four neutrons and twenty-one ...

The nucleus consists of 21 protons (red) and 24 neutrons (yellow). 21 electrons (white) bind to the nucleus, successively occupying available electron shells ( ...

We are given the atomic mass of Scandium equal to 45 So number of neutrons = 45 - 21 = 24 Hence, option (b) is correct.