Презентация по английскому "Хлор"

Chlorine is a chemical element with symbol Cl and atomic number 17. Chlorine is in the halogen group and is the second lightest halogen after fluorine. It has the highest electron affinity and the third highest electronegativity of all the elements
At standard conditions chlorine is a greenish-yellow gas with a sharp irritating odour, toxic. It in 2,5 times is heavier some air. In 1 volume of water at the 20°C, dissolves about 2 volumes of chlorine. This solution is called chloric water