Scientific Method
PART A: Put the following steps of the scientific method in the correct order,

1 Data
2 Hypothesis
3. Conclusion
4. Problem
5. Variables
6. Research
7. Procedure

Problem,  Variables,  Hypothesis,  Research,  Procedure,  Data, Conclusion.

Explanation:

First, you have to know what the problem that you're talking about is. Then, you have to know the independent, dependent, and controlled variables are in order to make a hypothesis. Then do research about the topic. After that, you make the procedure your experiment, if that's what your doing. Then after the experiment, you find the data. Using that data, you make a conclusion.

imma come back to you hold on

it is stable as it is in group 0 which have full outer shells of electrons