An unknown atom has 26 neutrons and an approximate atomic mass of 48 amu. what is the name of this element?

Answer is: the name of this element is titanium (Ti).
n° = 26.
A = 48, atomic mass.
The mass number A is sum of the atomic number Z and the number of neutrons.
A = n° + p⁺.
p⁺ = A - n°.
p⁺ = 48 - 26.
p⁺ = 22, number of protons.
Z = p⁺, atomic number.
The atomic number (proton number) uniquely identifies a chemical element.
Titanium is  transition metal with a silver color.