A. Alkali metals (I-A)
B. Group-14 elements (IV-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A)
Correct Answer: Group-18 elements (VIII-A) ✔
Last Updated: February 11, 2021
A. Alkali metals (I-A)
B. Group-14 elements (IV-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A)
Correct Answer: Group-18 elements (VIII-A) ✔
Last Updated: February 11, 2021