what is valency?and variable valency? valenced shell? valenced electrons?
Answers
Answer:
Variable Valency. Certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction. ... In the formation of ferrous oxide, iron exhibits a valency of +2, whereas in ferric oxide, it has a valency of +3. This is termed variable valency.
In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
Answer: valency is the number of electrons accepted or donated by an atom to attain stability.
Variable valency means exhibiting more than one valency. example. Cooper and iron
The outermost shell is called valence shell.
The electrons of the outermost shell or the valence shell are called valence electrons..
Hope it helps...
Please mark BRAINLIEST.