0
Its Valency = 2
the formula being CuO
The copper donates two electrons to the oxygen and forms one ionic bond.
Added:
There are two copper oxides, differing in color:
- if it is black powder, then it is copper(II) oxide CuO (cupric, more common, as in the mineral 'tenoriet')
- if it is red powder, then it is copper(I) oxide Cu2O (cuprous oxide, as in mineral the 'cupriet' and it occurs in 'Benedict's test' on reducing sugars)
What else can I help you with?
What is the valency of lithium?
The valency of lithium is 1. It has one valence electron in its outer shell.
What is the valency of Ferricyanide?
The valency of ferricyanide is -3. It contains one iron (III) cation with a valency of +3 and one cyanide anion with a valency of -1.
What the valency for silver?
The valency of silver is typically +1. However, silver can also exhibit a valency of +2 in certain compounds.
What is Valency of potassium dicromate?
The valency of potassium dichromate is +6. This is because potassium has a valency of +1, and each chromium atom in the dichromate ion has a valency of +6.
Which element has 4 and 6 valency?
Carbon has a valency of 4, while sulfur has a valency of 6.
When was Ralph Cupper born?
Ralph Cupper was born in 1954.
Who discovered cupper?
learn2wikipedia.
What rhymes with last supper?
past cupper
What is the valency of lithium?
The valency of lithium is 1. It has one valence electron in its outer shell.
Does cupper loose any weight when it conducts electricity?
No.
What is valency of argon?
Its valency is 0.
What is valency of tungsten?
the valency is 4
What is valency of nitrite?
the valency for nitrite is 5
What is the valency magnesium?
magnesium has a valency of 2
What is the valency of Ferricyanide?
The valency of ferricyanide is -3. It contains one iron (III) cation with a valency of +3 and one cyanide anion with a valency of -1.
What the valency for silver?
The valency of silver is typically +1. However, silver can also exhibit a valency of +2 in certain compounds.
What is the chemical name for Cu O2?
cupper (II) oxide
