Question

question 19 (0.5 points)listenwhich of the following are pnictogens?a) iodineb) seleniumc) nitrogend) oxygene) kryptonf) xenong) arsenich) fluorinei) argonj) chlorine

Explanation:

Pnictogens are the elements in Group 15 (VA) of the periodic table. This group includes nitrogen, phosphorus, arsenic, antimony, bismuth, and moscovium. Checking each option:

• Iodine (a) is Group 17, selenium (b) is Group 16, oxygen (d) is Group 16, krypton (e), xenon (f), argon (i) are Group 18, fluorine (h), chlorine (j) are Group 17. Only nitrogen (c) and arsenic (g) belong to Group 15.

Answer:

c) nitrogen
g) arsenic