1+ oxidation state

Periodic Trends in Properties of Elements

1. Periodicity in valency or oxidation states: Thevalence (or valency) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The valence of elements is usually (though not necessarily) equal to the number of electrons in the outermost orbitals and/ or equal to eight minus the number Read more about Periodic Trends in Properties of Elements[…]