Question

1. the elements fluorine, chlorine and bromine are in which group of the periodic table?

a. the alkali metals
b. the oxygen - like elements
c. the halogens
d. the noble gases

Explanation:

• Option a: Alkali metals are in Group 1 (e.g., Li, Na, K), not related to F, Cl, Br.
• Option b: Oxygen - like elements (chalcogens) are in Group 16 (e.g., O, S, Se), not matching F, Cl, Br.
• Option c: Halogens are in Group 17, and fluorine (F), chlorine (Cl), bromine (Br) are typical halogens with similar chemical properties.
• Option d: Noble gases are in Group 18 (e.g., He, Ne, Ar), not F, Cl, Br.

Answer:

c. the halogens