Answer:
Ten electrons.
Step-by-step explanation:
The atomic number of titanium is 22.
It means a neutral atom will have 22 electrons.
We fill the electrons in an atom based on three principles
a) Auf Bau Principle
b) Hund;s rule
c) Pauli's exclusion principle.
So based on these three the electronic configuration of titanium will be:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d²
Thus there are three orbitals in n = 3 shell
The number of electrons in n=3 shell = 2 + 6 +2 = 10.