21
scandium has 21 protons!
21
Because its atomic number is 21, it has 21 protons, 21 neutrons, and 21 electrons.
No.of protons of scandium is 21 (ATOMIC NUMBER) ATOMIC NO=no.of proton or electron MASS NO=no of proton+ no.of neutron
21 protons and 24 neutrons in the only stable for. But there can be as few as 15 and as many as 39 neutrons.
The element Scandium (Sc) has 21 protons in its nucleus, which can be determined using its atomic number. To find the number of neutrons, we can subtract the atomic number from the atomic mass: Scandium has an atomic mass of approximately 45. This gives us 45 - 21 = 24 neutrons in a Scandium atom.
To find the total number of protons in a sample of scandium with a mass of 7.9027 g, you need to divide the mass by the atomic mass of scandium. The atomic mass of scandium is approximately 44.96 g/mol. So, 7.9027 g / 44.96 g/mol = ~0.176 mol of scandium. Since there is 1 proton in the nucleus of each scandium atom, the total number of protons would be ~0.176 mol.
Number of neutrons = mass number - atomic number = 49 - 21 = 28
To figure this out look at the mass number of scandium. It has a mass number of 45(im rounding it up to keep it simple). The mass number is the number of protons and neutrons that form the nucleus added together. So if we know 24 of these 45 particles have to be neutrons then there must be(45-24)= 21 protons. To check this awnser we look at the atomic number(the one above the symbol for the element) and we can see that it is 21 for scandium meaning our awnser is correct.
As all other chemical elements scandium atom has a nucleus (containing protons and neutrons) and a cloud of electrons.
Scandium is a transition metal that is soft and silvery-white in appearance. It is a malleable and ductile element. Scandium has 21 protons and 24 neutrons.
Sc is actually atomic number 21, there are 21 protons, 21 electrons, and usually 24 neutrons