What is valence?
Answer:
Generally it's the number of bonds that an element will make to form neutral compounds.
Truthfully, one of the easiest ways to think about the chemistry of the nonmetals, especially carbon, nitrogen, oxygen, and the halogens, is to think about valence. Think about molecular models and the number of "holes" there would be in an atom to connect bonds. Hydrogen has one hole, oxygen two, nitrogen three, and carbon four. That's for neutral compounds, mind you. Nitrogen can make four bonds as in the case of the ammonium ion, but that's a charged species.
Yep. Its also the number of electrons in the "outer shell". (These make bonds, which is why its also the number of bonds)
You can work it out by looking at which group an element belongs to on the periodic table... eg. group 1, valency 1, group 2, valency 2, group 7, valency (-)1.
valence.i think refers to the outermost electrons in an orbit!
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: