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What is the valency and electronic configuration of oxygen?
Electron configuration for oxygen (O) is 1s2 2s2 2p4. The valency is 2-.
Why some elements have variable valencies?
Certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction. For example, iron combines with oxygen to form ferrous oxide as well as ferric oxide. 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
If the valency of Mn is 2 then how does it react with oxygen to form MnO2?
Manganese (Mn) has a valency of +2 in MnO2. It reacts with oxygen by combining one manganese atom with two oxygen atoms, forming manganese dioxide (MnO2). In this compound, each manganese atom is bonded to two oxygen atoms in a 1:2 ratio.
Why does periodic table show phosphate having valency of 5 yet it is really valency 3?
You have mistaken Phosphate for Phosphorus. Phosphorus is in Group 5 of the periodic table. Group 5 elements generally have a valency of 3, but it is also possible for them to have a valency of 5... Below are two examples of compounds, one using Phosphorus with valency 5 (V) and one using Phosphorus valency 3 (III) : Phosphate (phosphorus with maximum oxygen) This is formed by Phosphorus (V) + 4 Oxygen. Oxygen has valency -2, thus... 5 + 4 x -2 = 5 - 8 = -3 So we can see that Phosphate has a charge of -3 (or in other words a valency of 3) Phosphite (phosphorus with one less than maximum oxygen) This is formed by Phosphorus (III) + 3 Oxygen, and so... 3 + 3 x -2 = 3 - 6 = -3 So we can see that Phosphite also has a valency of 3 Hope this helps!
What is valency of dichromate?
Its valency is -2 Its chemical formula is Cr2O7
What non-metals has no variable valency Zn Cu Fe N?
Out of the non-metals you listed, nitrogen (N) is the only one that does not exhibit variable valency. Zinc (Zn), copper (Cu), and iron (Fe) can exhibit variable valency in certain compounds.
If one atom of oxygen combines with two atoms of hydrogen the valency of oxygen will be?
The valency of oxygen in this scenario would be 2. Oxygen typically has a valency of 2 when it forms compounds.
What is the valency of oxygen?
Oxygen has a valency of 2. This means that it can form up to two bonds with other elements in chemical compounds.
What is the valency of oxygen in suboxides?
The valency of oxygen in suboxides can vary, but it is typically less than its usual valency of 2 in oxides. Suboxides contain oxygen atoms with a valency of 1 or less, resulting in a lower overall valency for oxygen in these compounds.
What do you mean by variable valency?
Variable valencies are the valencies which can change e.g. Fe (iron) can either have the valency of 2 (Fe II) or 3 (Fe III)
How is the valency of oxygen two?
The valency of oxygen is two because oxygen typically forms covalent bonds by sharing two electrons with other atoms. This allows oxygen to achieve a stable octet configuration, which is energetically favorable.
What is the valency and electronic configuration of oxygen?
Electron configuration for oxygen (O) is 1s2 2s2 2p4. The valency is 2-.
What is the valency of trioxide?
S = +6 valency O = -2 valency
Why some elements have variable valencies?
Certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction. For example, iron combines with oxygen to form ferrous oxide as well as ferric oxide. 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
What is the valency of phosphorus in P2O5?
The valency of phosphorus in P2O5 is +5 because each oxygen atom has a valency of -2, giving a total of -10 for the oxygen atoms. To balance the charge in the compound, the phosphorus atom must have a valency of +5.
What is valency electrons of oxygen?
6
What is the valence atoms of oxygen?
Oxygen has the valency of 2 in most of the compounds.
