The other dude is rude wrong
The correct answer is Dmitri Mendeleev
Answer:
Scandium is the smallest element of the four
Explanation:
Vanadium = 50.9415 u
Titanium = 47.867 u
Scandium = 44.955912 u
Chromium = 51.9961 u
The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons
atomic number is equal to proton number
so the proton number will be 87
