Which noble gas does not have eight electrons in outermost shell : He Ar Kr Ne
Correct order for size of Iodine is : I > I+ I + I > I+ > I - I+ > I- > I I- > I > I+
Gas used in coloured discharge tube for advertisement is Ne Xe Ar He
At room temperature HCl is gas while HF is a liquid having low boiling point due to : H-F bond is covalent H-F has Hydrogen bonding H-F bond is Ionic H-F bond is metallic
Chlorine can not displace : Iodine from NaI Bromine from NaBr Flourine from NaF None of the above
Chlorine and Chloride ion differ in : Neutron Proton Electron Proton and electron
Which halogen is solid at room temperature: F2 Cl2 Br2 I2