Write down the characteristics of the elements having an atomic number 17.
Characteristics of the elements having an atomic no. 17⟶Chlorine(Cl)
⟶ Electronic configuration of Cl:1s22s22p63s23p5
⟶ It belongs to 17th group and 3rd period.
⟶ It has highest e− affinity in its' group.
⟶ It is a toxic green colored gas.
⟶ It is avery poisonous gas, even a low concentration of it in the air can be fatal.
⟶ It does not burn in normal state, but when temperature is increased, it reacts with hydrogen which can cause explosion and release phosgene gas.