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Grade: 8

                        

What is a divalant ion??

6 years ago

Answers : (4)

Rinkoo Gupta
askIITians Faculty
80 Points
							In chemistry, bivalent is an older term for divalent, meaning an atom orionwith a valence of two. Valence refers to the number of covalent bonds that the atom or ion can form with other atoms. Covalent bonds are formed through the sharing of electrons in the outermost valence shell or orbit of an atom, so a bivalent atom or ion has, by definition, two valence electrons with which to form bonds. Bivalent anions and cations — ions with negative and positive charges, respectively — are important in many biological systems, including human metabolism.Bivalent ions are often important in chemistry as well. When an atom loses its two valence electrons but does not covalently bond, it becomes a positively charged ion, or cation. Similarly, an atom that gains electrons from its neutral state is said to be an anion. For example, sulfide, a bivalent anion, has a negative charge of two — it has two more electrons than protons. Magnesium and calcium, which commonly form bivalent cations, each have a positive charge of two
Thanks & Regards
Rinkoo gupta
AskIItians Faculty
6 years ago
raunak samanta
37 Points
							An ion with a valency 2 is called divalent or ( correctly a bivalent ) ion eg Mg2+ is a bivalent action.

If I have helped you Please Approve My answer!!
						
6 years ago
Indu
47 Points
							Cations (eg. calcium, magnesium) or anions (eg. oxide, carbonate, phosphate, sulphate) having two electrical charges and able to combine with two atoms of an oppositely charged element or ion.
						
6 years ago
Mohammed Anas
37 Points
							
Thank You to all three Experts...Now I understood
 
6 years ago
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