A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
Correct Answer: Nitrogen & Phosphorous ✔
Last Updated: February 11, 2021
A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
Correct Answer: Nitrogen & Phosphorous ✔
Last Updated: February 11, 2021