valency of elements......
Answers
hello❤️
The capacity of an atom of an element to form chemical bonds is known as it's valency...
Answer:
solved
Explanation:
Valency is the measure of the combining capacity of atoms or molecules. Therefore, it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.
The Concept of Valency Explained
Electrons in an atom are arranged in different orbitals (shells) represented as K, L, M, N, and so on. The electrons present in the outermost shell/orbit of an atom are called valence electrons. The valence electrons take part in any chemical reaction because the outermost orbit usually contains more energy than the electrons present in other orbits.
According to the Bohr-bury scheme, the outermost orbit of an atom will have a maximum of 8 electrons. However, if the outermost orbit is completely filled then very little to no chemical activity is observed in the particular element. Their combining capacity becomes negligible or zero.
Understand the concept of Sub-atomic Particles here in detail.
This is why noble gases are least reactive because their outermost orbit is completely filled i.e valency is zero. However, the reactivity of other elements depends upon their capacity to gain noble gas configuration. It will also help to determine the valency of an atom.