The correct spelling is 'cuprous', and means copper-conatining. Some cuprous metals are, copper (obviously), brass, and bronze
The suffis -ous is added for a lower valence and the suffix -ic for a higher valence.Examples: ferric-ferrous, cupric-cuprous.
"Cuprous" is an archaic term for what today is called copper (I), Cu+1.
The mass of a formula unit of cuprous sulfide (Cu2S) is 159.152 g/mol.
Cuprous oxide or copper(I) oxide. This is copper in oxidation state '1'.
In the mineral called Cuprite
The suffis -ous is added for a lower valence and the suffix -ic for a higher valence.Examples: ferric-ferrous, cupric-cuprous.
The cuprous sulfide - Cu2S - is black.
Cuprous oxide or copper I oxide is Cu2O
a cuprous ion has 28 electrons.
"Cuprous" is an archaic term for what today is called copper (I), Cu+1.
Copper want to give up it's valence electrons, therefore it is a positive cation when ionized. Answers appear to be 1+ and 2+. Typically metals have positive ions. The charge of copper can be determined by evaluating the anion charge(s) and then solving the cation side.
The charge on cuprous ion is +2. It is written as Cu2+.
I think cuprous oxide has a charge of 1+, while cupric oxide has a charge of 2+. Cupric oxide is also more stable than cuprous oxide.
Actually, the answer Cu(NO3)2 is incorrect for cuprous nitrate. Cu(NO3)2 is in fact cupric nitrate. Cuprous nitrate is represented as CuNO3 alone.
Cu2SO4
The mass of a formula unit of cuprous sulfide (Cu2S) is 159.152 g/mol.
CuI