Question

The atomic number of an element is $16$. Predict its valency

Answer 1

Valency - Prediction

1. Valency is the number of electrons present in their outermost or valence shell.
2. The atomic number refers to the number of protons in an atom's nucleus. The number of protons determines an element's identity.
3. The given element's atomic number is $16$. As a result, its electronic configuration would be ($2,8,6$).
4. The given element's valency is two since the outer shell has six electrons. And it needs $2$ more electrons to fulfill its octet