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Oxygen is a 'divalent' atom. To understand why Oxygen is divalent, we need to know how electrons 'stack-up' in an atom.
Oxygen has eight electrons to stack up. This means that it can have two in its first shell, and six in the next. It has two spaces in it's second shell.
Another rule for atoms is that they 'like' to have full shells.
This means that the Oxygen atom finds it easy to pick up two extra electrons. This means it has a tendency to grab two electrons and carry them around, making it 'divalent'.
Other atoms that can behave divalently are Sulphur and Selenium (Group 8 atoms, in the same family as Oxygen) and metals like Magnesium and Calcium, that like to lose two electrons and so have a positive charge, the mirror image of Oxygens's divalency.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoBivalent anions have a double negative charge: example sulfate (SO42-), carbonate (CO32-)
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An atom that has lost two electrons is called?
This atom become a cation with the electrical charge +2.
Is copper monovalent or divalent?
copper can form monovalent as well as divalent salts
What is the overall charge of Beryllium atom?
The Beryllium atom , like all atoms has zero(0) charge. However, it is a Group (II) Alkaline Earth Metal and will form the cation Be^2+ . This has a charge of '+2'.
What is the oxidation number on N2?
Oxidation numbers are defined for atoms, not molecules such as N2. The oxidation number of both atoms in a divalent elemental molecule is specified to be 0, as is the oxidation number of an atom of an element for which one atom constitutes a molecular unit.
What is the oxidation number of Co in CoS?
The oxidation number for Co in CoS is +2, a divalent cobalt cation, since the only anion formed from a single sulfur atom has a charge of -2.
Is Ferrous and Ferric diatomic and triatomic?
No. Ferrous and ferric cations are divalent and trivalent respectively, but both are only single atom ions.
An atom that has lost two electrons is called?
This atom become a cation with the electrical charge +2.
What is an alkylidene?
An alkylidene is any of a class of divalent functional groups derived from an alkane by removal of two hydrogen atoms from the same carbon atom.
Is copper monovalent or divalent?
copper can form monovalent as well as divalent salts
What is the overall charge of Beryllium atom?
The Beryllium atom , like all atoms has zero(0) charge. However, it is a Group (II) Alkaline Earth Metal and will form the cation Be^2+ . This has a charge of '+2'.
What is the oxidation number on N2?
Oxidation numbers are defined for atoms, not molecules such as N2. The oxidation number of both atoms in a divalent elemental molecule is specified to be 0, as is the oxidation number of an atom of an element for which one atom constitutes a molecular unit.
What happens when divalent impurity is doped with trivalent element?
will there be any structural changes when divalent is doped with trivalent
What is the oxidation number of Co in CoS?
The oxidation number for Co in CoS is +2, a divalent cobalt cation, since the only anion formed from a single sulfur atom has a charge of -2.
Is calcium a divalent metal?
Yes.
Which elements form a divalent cation and which elements form a trivalent anions?
Divalent cation: Ca2+ Trivalent anion: (PO4)3-
What is divalent?
Divall is a surname and people have it as the surname.
What are the example of divalent anion?
Sulfide Dicarbonate
