How do you know how the atoms are arranged in a structural formula? In which direction?

I don't understand. Yes, I know you have to follow the octet rule, and I understand the principle, but there are different ways to align them. How do you know that? For example, nitrogen dioxide, sulfuric oxygen, or phosgene? How do you figure that out? Thank you in advance Kind regards

Metals of chemistry?

Hello everyone, I'm writing a chemistry test tomorrow and I don't really understand much of it right now. I would appreciate it if you could explain the following topics to me as simply as possible: Nuclides, atomic charge and mass number all metals (i.e. the structure and formability) how does electron division occur the octet…