HOBrFINClHydrogenOxygenBromineFluorineIodineNitrogenChlorineThese when in elemental state cannot stand alone so the are written at H2, O2, ect.
Nitrogen Oxygen Flourine Chlorine Bromine Iodine and Hydrogen - you can use the mnemonic HONIFBrOCl- "Honifbrockel"or Have No Fear Of Ice Cold Beer
No. C2 does not exist, because it is not possible to form a quadruple bond. However, carbon does form large network solids such as diamond and graphite. In these solids many many carbon atoms are all...
two
atoms. diatomic simply means two atoms in one molecule. These could be different things like: Cl2, Br2 and I2.