Rb is rubidium, O is oxygen. They will combine to form Rb2O which is called rubidium oxide.
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H-O-H is the symbol formula of WATER. H2O
When grading copper cents, there are three main subgrades: BN (brown, a tarnished cent) RB (red-brown, a cent that has began to tarnish) and RD (red, an untarnished cent) out of all of these, collectors will sometimes pay a premium for RD or RB cents because they are much more attractive. However, keep in mind that most slabs aren't airtight and your RB or RD cent may very well eventually tarnish into a BN cent, so my advice is not to pay a premium for the colour designation but rather focus on the true grade of the coin (expressed in a number from 1 being barely recognizable to 70 being perfection)
Cs2O2 APEX 2021
No such chemical as 'Rb O'. The nearest is Rb2O , which is Rubidium oxide.
Since Rb forms a 1+ ion the formula for rubidium oxide is Rb2O.
The rubidium nitride has the chemical formula Rb3N.
Rubidium does not have a formula but a symbol: Rb.
Rb
The chemical formula for rubidium selenate is Rb2SeO4. It consists of two rubidium (Rb) ions, one selenium (Se) ion, and four oxide (O) ions.
These are the ions and their charges: Rb+1 N-3The charges have to add up to zero, so two +1 Rb ions were added to cancel out the -3 charge of N: Rb+1 Rb+1 Rb+1 N-3Simplify: Rb3N
The ionic formula for rubidium ion (Rb+) and nitride ion (N3-) would be Rb3N. The charges on the ions must balance out to create a neutral compound.
Rubidium: Rb Selenium: Se
Rb has an oxidation number of +1, Cl has an oxidation number of -1, and O has an oxidation number of -2 based on common rules. Therefore, the oxidation number for RbClO would be +1 for Rb, -1 for Cl, and -2 for O.
The empirical formula for iodine is I2 and for rubidium is Rb.
The order is: O, Cl, Sb, Rb, Ar.