The atomic number is the number of protons so it’s 9 Protons and 11 Neutrons.
The second one is 36 Protons and 17 Neutrons.
Hope this helps!
Your answer will be A.) hope this helps you good luck
Answer:
Phase III.
Explanation:
Clinical research includes the different steps to test the particular drugs and its use for the medical treatment. Clinical research is divided into four main phases.
The phase III of the clinical research includes the double blinded study and its clinical trial on the patients. This phase determines the drug safety and efficacy. The therapeutic effect of the drug is tested directly in phase III of the clinical trial.
Thus, the answer is phase III.