Discussion Forum
Que. | Atomic mass of phosphorus is |
a. | 11 |
b. | 21 |
c. | 31 |
d. | 41 |
Correct Answer:31
|
Que. | Atomic mass of phosphorus is |
a. | 11 |
b. | 21 |
c. | 31 |
d. | 41 |
Correct Answer:31
|