A. 35.5
B. 17
B. 15
D. 21
Submitted by: Aamir khan Hullio
Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature.
Correct Answer: 17 ✔
Last Updated: September 23, 2022