Calculate the number of valence electrons in Tennessine using its electron configuration step by step.
Determine the number of valence electrons in Tennessine (Ts, Element 117)
The abbreviated (condensed) ground electronic configuration for Tennessine is:
[Rn] 5f14 6d10 7s2 7p5
Calculate Electronic Configuration for Tennessine
Electrons in atomic orbitals outside the [Rn] core are the outermost electrons:
5f14 6d10 7s2 7p5
Extract the principle quantum number, n, and number of electrons from the electron configuration:
Electron Configuration | n | Orbital | Number of Electrons |
---|---|---|---|
5f14 | 5 | f | 14 |
6d10 | 6 | d | 10 |
7s2 | 7 | s | 2 |
7p5 | 7 | p | 5 |
The outermost electrons with the largest principal quantum number (in this case, n = 7) are valence electrons.
Tennessine (Ts) has 7 (2 + 5) valence electrons.